Karena udara di ruangan itu terlalu panas, saya sempat merasa sesak dan harus keluar sebentar.

Karena means because and introduces the reason.

So the first part, Karena udara di ruangan itu terlalu panas, gives the cause, and the second part explains the result.

You could also reverse the order:

Saya sempat merasa sesak dan harus keluar sebentar karena udara di ruangan itu terlalu panas.

Both are natural. Starting with karena puts the reason first.

The comma separates the reason clause from the main clause.

• Karena udara di ruangan itu terlalu panas = reason
• saya sempat merasa sesak dan harus keluar sebentar = main statement

When a karena clause comes first, a comma is very common in careful writing. In very informal writing, people may leave it out, but using it here is correct and clear.

It literally means the air in that room.

Breakdown:

• udara = air
• di = in / at
• ruangan = room
• itu = that

So:

udara di ruangan itu = the air in that room

In Indonesian, demonstratives like ini and itu usually come after the noun.

So:

• ruangan itu = that room
• buku itu = that book
• orang itu = that person

This is normal Indonesian word order.

They are related, but not exactly the same.

• ruang = space / room
• ruangan = a room, often as an enclosed or designated space
• kamar = a room of a specific kind, often a bedroom, hotel room, bathroom, etc.

In this sentence, ruangan sounds natural because it refers to an indoor room or enclosed space in a general way.

Terlalu means too or excessively.

So:

• panas = hot
• terlalu panas = too hot

This is stronger than just saying the room was hot. It suggests the heat was excessive enough to cause discomfort.

Compare:

• panas = hot
• sangat panas = very hot
• terlalu panas = too hot

Sempat is a very useful word. Its basic idea is to have the chance/time to do something, but in many sentences it also suggests that something did happen, even if only briefly or before something else happened.

In this sentence:

saya sempat merasa sesak

means something like:

• I did feel short of breath
• I briefly felt short of breath
• I had a moment where I felt short of breath

So sempat adds the nuance that the feeling occurred for a short time or at some point before the next action.

Without sempat:

saya merasa sesak = I felt short of breath

That is still correct, but sempat adds a sense of brief occurrence.

Merasa means to feel, and sesak can mean tight, cramped, or short of breath, depending on context.

Here, because the sentence talks about hot air and needing to leave the room, sesak is understood as something like:

• short of breath
• chest tightness
• difficulty breathing comfortably

So merasa sesak means to feel tight-chested / short of breath.

Not exactly, but they are closely related.

• sesak by itself can mean tight, cramped, stifling, or breathless, depending on context
• sesak napas is more specific and clearly means shortness of breath

In this sentence, merasa sesak is natural because the context already makes the meaning clear. If the speaker wanted to be more explicit, they could say:

saya sempat merasa sesak napas

That would sound more specifically medical or physical.

Because the subject is still understood to be the same person.

So:

saya sempat merasa sesak dan harus keluar sebentar

means:

I briefly felt short of breath and had to go out for a moment

In Indonesian, if the subject stays the same, it is often omitted in the second part of the sentence.

You could say:

..., saya sempat merasa sesak dan saya harus keluar sebentar

but repeating saya is less smooth unless you want special emphasis.

Harus means must, have to, or need to.

Here it shows necessity:

harus keluar sebentar = had to step out for a moment

It suggests the speaker felt it was necessary because of the situation.

Keluar means to go out / exit / leave, and sebentar means for a moment / briefly.

So keluar sebentar means:

• step out for a moment
• go out briefly
• leave for a short while

In this context, it most likely means the speaker left the hot room temporarily.

By itself, keluar just means go out / exit. The exact destination depends on context.

In this sentence, the most natural interpretation is:

• the speaker left the room

It does not necessarily mean going outdoors. It could simply mean stepping into a hallway, another room, or any less stuffy place.

Yes, and the meaning would be very similar.

• di ruangan itu = in that room
• dalam ruangan itu = inside that room

Dalam emphasizes the inside a little more, but in many cases both are natural.

So:

udara di ruangan itu and udara dalam ruangan itu

can both work, though the original sentence sounds very natural as it is.

Yes, slightly.

Original:

saya sempat merasa sesak dan harus keluar sebentar

Without sempat:

saya merasa sesak dan harus keluar sebentar

The version without sempat is more direct: I felt short of breath and had to step out.

The version with sempat adds a nuance that the feeling happened briefly or at some point before the speaker went out. It can make the sentence sound a little more natural and vivid.

Yes, but the structure and nuance would change a bit.

• terlalu panas = too hot
• kepanasan = overheated / feeling too hot

In the original sentence, terlalu panas describes the air in the room:

udara di ruangan itu terlalu panas = the air in that room was too hot

If you use kepanasan, it usually describes a person feeling overheated, for example:

Saya kepanasan di ruangan itu.

So terlalu panas is the better choice here because the sentence is talking about the condition of the air.