Gunakan semula pembungkusan plastik itu.

Guna means use.
Gunakan is the verb guna with the suffix -kan, which often makes the verb sound more complete, transitive, or instruction-like.

In commands, gunakan is very common in formal or written Malay, especially on signs, notices, and instructions.

So:

• Guna semula pembungkusan plastik itu. = more casual
• Gunakan semula pembungkusan plastik itu. = more standard/formal

Both can mean the same thing here.

Semula means again, anew, or back depending on context.

So gunakan semula literally means use again, which is why the whole idea is reuse.

Some similar examples:

• baca semula = read again
• tulis semula = rewrite / write again
• mula semula = start again

Yes, very often.

Malay frequently expresses ideas like reuse with a normal verb plus semula:

• gunakan semula = reuse
• literally: use again

This is very natural Malay. It does not need to be a single word.

Pembungkusan comes from the root bungkus, which relates to wrapping, packing, or packaging.

The pattern pem-...-an often turns a root into a noun. So:

• bungkus = wrap / pack
• pembungkusan = packaging / the act or material of packing

In this sentence, pembungkusan plastik most naturally means plastic packaging.

Depending on context, pembungkusan can refer to:

• the process of packaging
• the packaging material
• the packaging around a product

Here it most likely means the packaging material.

In Malay, the main noun usually comes first, and the describing word comes after it.

So:

• pembungkusan plastik = packaging made of plastic / plastic packaging

The head noun is pembungkusan and plastik describes what kind of packaging it is.

This is a very common Malay pattern:

• rumah kayu = wooden house
• beg plastik = plastic bag
• botol kaca = glass bottle

Because Malay demonstratives such as ini (this) and itu (that) usually come after the noun phrase, not before it.

So:

• pembungkusan plastik itu = that plastic packaging
• literally: packaging plastic that

This is normal Malay word order.

Compare:

• buku itu = that book
• kereta itu = that car
• rumah besar itu = that big house

Notice that itu comes after the whole noun phrase.

Because this is an imperative, or command sentence.

In Malay, as in English, the subject you is often omitted in commands because it is understood.

So:

• Gunakan semula pembungkusan plastik itu. = Reuse that plastic packaging.

The sentence is directed at the listener, so Malay does not need to say awak or anda.

If you did include a pronoun, it would usually sound more marked, more forceful, or less natural in many contexts.

Most naturally, it is a command/instruction.

The form gunakan strongly suggests an imperative meaning:

• Use...
• Please use... in a formal instruction sense
• Reuse...

In real life, it could appear as:

• a label
• an environmental notice
• a set of instructions
• a public campaign slogan

If you want to make it more explicitly polite, you could say:

• Sila gunakan semula pembungkusan plastik itu. = Please reuse that plastic packaging.

This is an important distinction.

• gunakan semula = reuse
• kitar semula = recycle

So:

• Gunakan semula pembungkusan plastik itu. = Use the plastic packaging again.
• Kitar semula pembungkusan plastik itu. = Recycle the plastic packaging.

Reuse means using the same item again, often without major processing.
Recycle means processing the material so it can become something else or be used again in a new form.

Yes. The exact English translation depends on context.

Pembungkusan plastik can refer to:

• plastic packaging
• plastic wrapping
• plastic packing material

If the item is something like a wrapper around food, plastic wrapping may sound better in English.
If it is the outer packaging of a product, plastic packaging is probably the best translation.

So the Malay is slightly broader than one fixed English wording.

The most natural place here is after the verb:

• Gunakan semula pembungkusan plastik itu.

That is the standard order.

Malay sometimes allows flexibility for emphasis, but for a learner, the safest pattern is:

verb + semula + object

Examples:

• baca semula surat itu = read the letter again
• tulis semula ayat itu = rewrite that sentence
• gunakan semula bekas itu = reuse that container

A simple learner-friendly pronunciation would be:

goo-NAH-kahn suh-MOO-lah pem-boong-KOO-sahn PLAS-tik EE-too

A few notes:

• u is usually like oo
• a is usually like the a in father
• ng in bungkusan is like the ng in sing
• stress in Malay is usually fairly light compared with English, so do not over-stress syllables too much

A more natural flow would be something like:

goo-NA-kən sə-MOO-la pəm-boong-KOO-san PLAS-tik EE-tu

In everyday spoken Malay, people may choose shorter or simpler wording, depending on context.

Possible alternatives include:

• Guna semula pembungkusan plastik itu. = casual everyday version
• Sila gunakan semula pembungkusan plastik itu. = polite/formal
• Jangan buang, guna semula pembungkusan plastik itu. = Don’t throw it away, reuse that plastic packaging.

So the original sentence is perfectly correct, but it sounds especially like formal written Malay or a public instruction.