Muatan kapal diperiksa di pelabuhan sebelum awak menutup pintu kabin.

Muatan kapal literally means the ship’s cargo/load.

This is a very common Indonesian pattern: noun + noun.

• muatan = load, cargo, contents being carried
• kapal = ship

So muatan kapal means the cargo of the ship or ship cargo. Indonesian often shows this kind of relationship just by putting two nouns together, without using a word like of.

Similar examples:

• pintu kabin = cabin door
• mesin kapal = ship engine
• awak kapal = ship’s crew

Diperiksa is the passive form of periksa (to inspect/check).

The prefix di- on a verb usually marks a passive verb in Indonesian:

• memeriksa = to inspect, to check
• diperiksa = is inspected, was inspected, gets inspected

So:

• Muatan kapal diperiksa = The ship’s cargo was inspected / is inspected

The sentence focuses on the cargo, not on who did the inspecting. That is very typical in Indonesian.

If you wanted to mention the agent, you could add oleh:

• Muatan kapal diperiksa oleh petugas = The ship’s cargo was inspected by the officers/staff

No. They look the same, but they are different things.

1. di- in diperiksa is a prefix attached directly to the verb.
   It marks the passive.

   • diperiksa = inspected

2. di in di pelabuhan is a preposition meaning in / at / on.

   • di pelabuhan = at the port

A useful spelling clue:

• Passive prefix: written together with the verb → diperiksa
• Preposition: written separately → di pelabuhan

Indonesian normally does not use articles like English does.

So:

• muatan kapal can mean the ship’s cargo, a ship’s cargo, or just ship cargo
• pelabuhan can mean the port or a port
• pintu kabin can mean the cabin door or a cabin door

The exact meaning is usually understood from context.

If needed, Indonesian can make things more specific in other ways, but in a normal sentence like this, no article is necessary.

Sebelum means before.

It introduces a time clause:

• sebelum awak menutup pintu kabin = before the crew closed the cabin door / before the crew closes the cabin door

So the structure is:

• main clause: Muatan kapal diperiksa di pelabuhan
• time clause: sebelum awak menutup pintu kabin

This tells us the inspection happened earlier than the door-closing event.

Awak here means crew.

In maritime contexts, awak often refers to the people working on the ship. Very often you will also see:

• awak kapal = ship’s crew

In this sentence, awak is being used in a general sense, like the crew.

A learner should note that Indonesian nouns usually do not change form for singular vs. plural, so awak can feel a little flexible depending on context. In English, the natural translation here is probably the crew rather than a crew member.

Menutup is the active verb form built from tutup.

• tutup can be a root meaning close/shut, and it can also appear in other grammatical uses
• menutup = to close, as an active transitive verb

The prefix meN- often forms active verbs, especially when there is a direct object.

Here, the object is:

• pintu kabin = cabin door

So:

• awak menutup pintu kabin = the crew closes/closed the cabin door

Using menutup makes it clear that awak is actively doing the action to pintu kabin.

Because Indonesian usually prefers a simple noun + noun structure for this kind of relationship.

• pintu kabin = cabin door
• literally, something like door cabin

This is more natural than using a longer phrase with dari. In most cases, noun + noun is the normal way to express:

• possession
• type
• category
• part-whole relationships

So pintu kabin is just the normal, compact Indonesian way to say the cabin door.

Indonesian verbs do not change the way English verbs do for tense.

So:

• diperiksa does not itself mean specifically is inspected or was inspected
• menutup does not itself mean specifically closes or closed

Time is understood from:

• context
• time words
• sequence markers like sebelum

In this sentence, sebelum already gives a time relationship: one action happened before another. Depending on the wider context, English might translate it in the present, past, or even future.

That is normal in Indonesian.

Yes. Indonesian often allows both passive and active versions.

The given sentence is passive:

• Muatan kapal diperiksa di pelabuhan ...
• The cargo is the focus.

An active version might be:

• Petugas memeriksa muatan kapal di pelabuhan sebelum awak menutup pintu kabin.
• The officers/staff inspected the ship’s cargo at the port before the crew closed the cabin door.

The difference is mainly in focus:

• passive = emphasizes muatan kapal
• active = emphasizes the person doing the inspecting

Yes, it is very natural.

The order is:

• Muatan kapal = topic/patient
• diperiksa = passive verb
• di pelabuhan = location
• sebelum awak menutup pintu kabin = time clause

So the overall pattern is roughly:

patient + passive verb + location + time clause

That is a very common Indonesian structure, especially when the sentence is in the passive and the speaker wants to focus on the thing affected by the action.

Yes. Di pelabuhan is the normal phrase here.

The preposition di covers several meanings that English separates into:

• in
• at
• sometimes on

So di pelabuhan can naturally be translated as:

• at the port
• in the harbor
• at the harbor

The best English choice depends on context, but the Indonesian phrase itself is completely normal.

You could restructure it so awak is the main subject, but you would probably need to make the inspection clause active too. For example:

• Awak menutup pintu kabin setelah petugas memeriksa muatan kapal di pelabuhan.

This means:

• The crew closed the cabin door after the officers inspected the ship’s cargo at the port.

Notice that:

• sebelum often becomes setelah if you switch the order of events in the sentence
• the meaning stays similar, but the perspective changes

This is a useful thing to practice, because Indonesian often allows the same events to be described from different starting points.