Di gang belakang, ada warung kecil tempat warga duduk sambil berbicara tentang jadwal piket dan ronda.

It means something like in the back alley or in the alley at the back.

• di = in / at
• gang = a small lane, alley, or narrow passage between buildings
• belakang = back / rear / behind

So gang belakang refers to an alley located behind the main area or behind the houses/buildings.

Indonesian often starts a sentence with a place expression to set the scene first.

So:

• Di gang belakang, ada warung kecil ...

feels like:

• In the back alley, there is a small warung ...

This is very natural in Indonesian. It gives the location first, then introduces what is there.

Ada means there is / there are in this kind of sentence.

So:

• ada warung kecil = there is a small warung

It is used to introduce the existence of something. Very often, Indonesian uses:

• Di ... ada ... = In/At ..., there is/are ...

For example:

• Di depan rumah ada pohon. = In front of the house, there is a tree.

Indonesian does not normally use articles like English a, an, and the.

So warung kecil can mean:

• a small warung
• the small warung

The exact meaning depends on context. In this sentence, because ada is introducing it for the first time, English naturally translates it as a small warung.

A warung is a small local shop, stall, or simple eatery. The exact meaning depends on context.

It can be:

• a tiny food stall
• a roadside shop
• a neighborhood kiosk
• a simple place where people gather, eat, drink, or buy small things

In this sentence, it sounds like a small neighborhood stall where locals can sit and chat.

In Indonesian, adjectives usually come after the noun.

So:

• warung kecil = small warung
• rumah besar = big house
• jalan sempit = narrow road

This is the normal word order.

Here tempat means place.

So:

• warung kecil tempat warga duduk ... literally means
• a small warung, a place where residents sit ...

In more natural English, we would say:

• a small warung where residents sit ...

Indonesian often uses tempat to mean the place where..., without needing a separate word like where.

Because tempat already helps introduce the idea of the place where...

So:

• tempat warga duduk = the place where residents sit

This is already natural Indonesian.

You could make it longer and more explicit, such as:

• warung kecil yang menjadi tempat warga duduk ...

But that sounds more formal and less compact. The original sentence is smoother and more natural in everyday usage.

Warga can mean citizens, residents, or community members, depending on context.

In this sentence, it most likely means:

• local residents
• people in the neighborhood

So it refers to the people who live there, not citizens in a legal or national sense.

Sambil means while or at the same time as.

So:

• duduk sambil berbicara = sit while talking

It shows that two actions happen together:

• they are sitting
• they are talking

Other examples:

• Makan sambil menonton TV = Eat while watching TV
• Dia berjalan sambil tersenyum = He/She walks while smiling

Both are possible, but berbicara is a little more complete and slightly more formal or standard.

• bicara = talk / speech / to talk
• berbicara = to speak / to be talking

The prefix ber- often forms an intransitive verb, and here it makes the sentence sound polished and natural.

So:

• sambil berbicara = while talking

In casual speech, many people would also say:

• sambil bicara

Tentang means about or regarding.

So:

• berbicara tentang jadwal piket dan ronda = talking about the duty schedule and neighborhood patrol

It introduces the topic of the conversation.

Jadwal means schedule.

Piket refers to assigned duty, a shift, or a turn-based responsibility. In Indonesian life, piket can refer to things like:

• cleaning duty
• school classroom duty
• office duty
• neighborhood duty

So jadwal piket means:

• the duty schedule
• the roster of whose turn it is

Ronda refers to a neighborhood patrol, especially a community night watch.

In many Indonesian neighborhoods, residents take turns helping with local security at night. That activity is called ronda.

So jadwal piket dan ronda suggests they are talking about community responsibilities, especially duty turns and patrol arrangements.

Here it is a noun.

It refers to the activity itself:

• ronda = neighborhood patrol / night watch

In other contexts, related verb forms can appear, such as:

• meronda
• beronda

Those mean to patrol.

But in this sentence, ronda is part of the topic being discussed.

Indonesian often does not mark plural explicitly when the meaning is already clear from context.

So warga here naturally means residents even without a plural marker.

If someone really wanted to emphasize plurality, they could say:

• warga-warga

But that is often unnecessary and can sound less natural in many contexts.

It is helpful, but not always strictly necessary.

The comma shows a pause after the opening location phrase:

• Di gang belakang, ada warung kecil ...

This is similar to English punctuation after a fronted phrase like:

• In the back alley, there is ...

Without the comma, the sentence is still understandable:

• Di gang belakang ada warung kecil ...

Both are possible.

Yes. That is also grammatical and natural.

Compare:

• Di gang belakang, ada warung kecil ...
• Ada warung kecil di gang belakang ...

The difference is mainly focus:

• Di gang belakang... puts the location first
• Ada warung kecil... introduces the warung first

Both are normal in Indonesian.

It is mostly neutral.

A few points:

• warung is an everyday word
• warga is common and fairly neutral
• berbicara is slightly more formal than bicara
• overall, the sentence sounds natural and descriptive

So it is not slangy, but it is also not stiff or overly formal.