Karena debu, hidung saya gatal dan saya bersin beberapa kali di perpustakaan.

Yes. In this sentence, karena debu means because of dust.

A useful thing to know is that karena can introduce either:

• a reason clause: karena saya sakit = because I am sick
• a reason noun phrase: karena debu = because of dust

So even though karena is often taught as because, it can also work like because of in English when it is followed by a noun.

You could also say:

• Hidung saya gatal karena debu.
  = My nose is itchy because of dust.

Both word orders are natural.

The comma separates the opening reason phrase from the main statement:

• Karena debu, ...
• then the main clause: hidung saya gatal dan saya bersin beberapa kali di perpustakaan

This is similar to English punctuation in a sentence like:

• Because of the dust, my nose felt itchy...

In Indonesian, punctuation is sometimes less rigid in casual writing, so you may also see the sentence without a comma. But with an introductory phrase like this, the comma is very normal and helpful.

In Indonesian, possession usually works as:

• noun + possessor

So:

• hidung saya = my nose
• buku saya = my book
• teman saya = my friend

This is different from English, where the possessor usually comes first.

You can think of hidung saya literally as nose of mine, although in real English we naturally translate it as my nose.

Indonesian often does not need a word equivalent to English is/are in simple descriptive sentences.

So:

• hidung saya gatal literally looks like my nose itchy
• but it means my nose is itchy

This is very common in Indonesian:

• Saya lelah = I am tired
• Rumahnya besar = His/her house is big
• Cuacanya panas = The weather is hot

If you want, you can also say:

• Hidung saya terasa gatal = My nose feels itchy

That version sounds a little more explicit, but hidung saya gatal is perfectly natural.

It is repeated because the sentence has two coordinated parts:

• hidung saya gatal
• dan saya bersin beberapa kali di perpustakaan

In Indonesian, repeating the subject or pronoun is often the clearest and most natural choice, especially when the structure changes.

If you removed the second saya, the sentence would sound less clear:

• Karena debu, hidung saya gatal dan bersin beberapa kali...

That sounds awkward because hidung saya would incorrectly seem to be the subject of bersin. But noses do not sneeze; people do.

So the second saya is important for clarity.

Good question. Not every Indonesian verb needs a prefix.

Bersin is already the normal dictionary form of the intransitive verb to sneeze. It functions as a complete verb by itself.

So:

• Saya bersin. = I sneeze / I sneezed

Many Indonesian verbs do use prefixes, but some common verbs appear without one, and bersin is one of them.

Other examples of base-form intransitive verbs include:

• tidur = to sleep
• datang = to come
• pergi = to go

So saya bersin is completely standard.

Beberapa kali means several times or a few times.

In Indonesian, frequency expressions like this often come after the verb:

• saya bersin beberapa kali = I sneezed several times

This word order is very natural.

Compare:

• Saya batuk beberapa kali. = I coughed several times
• Dia mengetuk pintu beberapa kali. = He/She knocked on the door several times

You may also hear berkali-kali, which means repeatedly / many times. The difference is:

• beberapa kali = several times, a limited number
• berkali-kali = many times, repeatedly, often stronger

Di perpustakaan is a location phrase meaning in the library, and location phrases often appear near the end of an Indonesian sentence.

So:

• saya bersin beberapa kali di perpustakaan
  = I sneezed several times in the library

This placement is very normal.

In context, di perpustakaan most directly attaches to the second part, saya bersin beberapa kali. But in real usage, listeners may understand it as the setting for the whole situation.

If you want to make the location apply clearly to everything, you could also restructure the sentence:

• Di perpustakaan, karena debu, hidung saya gatal dan saya bersin beberapa kali.

But the original sentence is already natural.

No. They look similar, but they are different things.

In di perpustakaan, di is a preposition meaning in / at / on. It is written separately from the noun:

• di perpustakaan = in the library
• di rumah = at home
• di meja = on the table

The passive prefix di- is attached directly to a verb:

• dibaca = read
• ditulis = written
• dibuka = opened

So spacing helps you tell them apart:

• di perpustakaan → preposition + noun
• ditulis → passive prefix + verb

Perpustakaan is the standard word for library.

It is the normal word in schools, universities, public institutions, and formal or neutral speech.

There are not many common alternatives in everyday standard Indonesian. In casual speech, people still usually say perpustakaan.

So for learners, perpustakaan is definitely the word to remember.

It is neutral to slightly formal.

Reasons:

• saya is polite/neutral for I / my
• perpustakaan is standard vocabulary
• the whole sentence is grammatically complete and clear

In casual conversation, a speaker might change a few things, such as using aku instead of saya:

• Karena debu, hidungku gatal dan aku bersin beberapa kali di perpustakaan.

That sounds more informal and personal.

So the original sentence is a good standard model.

Yes, that is a very natural question.

Karena debu is grammatical and understandable. It means the dust is the cause.

But depending on context, Indonesian speakers might also say:

• karena ada debu = because there was dust
• karena debunya = because of the dust
• gara-gara debu = because of the dust, more casual

These versions can feel a little more specific:

• karena debu = because of dust in general
• karena ada debu = because there was some dust present
• karena debunya = because of that particular dust

So the original sentence is fine, but other versions may be chosen depending on what nuance the speaker wants.

Dan is perfectly fine here. It simply links two things that happened:

• hidung saya gatal
• saya bersin beberapa kali

So the sentence presents both results of the dust.

If you want a slightly different nuance, you could also use other connectors:

• lalu = then
• sehingga = so / resulting in
• sampai = to the point that

For example:

• Karena debu, hidung saya gatal sehingga saya bersin beberapa kali di perpustakaan.
  = Because of the dust, my nose was itchy, so I sneezed several times in the library.

But dan is simple, natural, and correct.

Its basic meaning is itchy, especially for skin or body parts:

• Kulit saya gatal. = My skin is itchy.
• Hidung saya gatal. = My nose is itchy.

But like many adjectives, it can also be used more figuratively in Indonesian in some contexts. For learners, though, the main meaning you should focus on is the physical one: itchy.

In this sentence, it is very straightforwardly physical.

Yes. The original sentence is good, but here are some natural alternatives:

• Karena debu, hidung saya terasa gatal dan saya bersin beberapa kali di perpustakaan.
  Slightly more explicit: my nose felt itchy

• Karena ada debu di perpustakaan, hidung saya gatal dan saya bersin beberapa kali.
  Makes it clear that the dust was in the library

• Gara-gara debu, hidung saya gatal dan saya bersin beberapa kali di perpustakaan.
  More casual because gara-gara is less formal than karena

All of these are natural. The original sentence is already a solid standard version.