gojeongseok dwie samulhamgwa boksagiga isseoyo.

A natural breakdown is:

• 고정석 = a fixed seat / assigned desk
• 뒤에 = behind, at the back of
• 사물함 = locker
• 과 = and
• 복사기 = copier / copy machine
• 가 = subject marker
• 있어요 = there is / there are

So the basic Korean pattern is:

[location]에 [thing]이/가 있어요
= There is/are [thing] at/in/on [location]

In this sentence, the location comes first, and the things that exist there come after.

뒤 means back or behind.

When you add 에, it marks the location, so 뒤에 means behind or at the back of.

In Korean, existence sentences usually mark the place with 에:

• 책상 위에 책이 있어요. = There is a book on the desk.
• 문 앞에 사람이 있어요. = There is a person in front of the door.

So 고정석 뒤에 means behind the assigned desk/seat.

That is a very common Korean word order.

Korean often introduces the place first and then says what is there:

• 회의실에 사람이 있어요. = There is a person in the meeting room.
• 책상 아래에 가방이 있어요. = There is a bag under the desk.

So:

고정석 뒤에 사물함과 복사기가 있어요.
literally follows the pattern
Behind the assigned desk, a locker and a copier exist.

That sounds odd in English, but it is normal in Korean.

Not exactly.

고정석 usually means a fixed or assigned seat/desk—a place that is regularly designated for one person. You might hear it in offices, schools, or shared workspaces where some seats are permanently assigned.

So it is more specific than just seat or desk in general.

Depending on context, it can feel like:

• assigned desk
• fixed seat
• designated seat

과 means and when joining nouns.

Korean has two matching forms:

• 과 after a noun ending in a consonant
• 와 after a noun ending in a vowel

Since 사물함 ends in a consonant sound, you use 과:

• 사물함과 복사기

Examples:

• 책과 연필 = a book and a pencil
• 의자와 책상 = a chair and a desk

Also, 과/와 sounds a bit more neutral or written/formal than 하고 or 이랑/랑, though all can mean and in many contexts.

In this sentence, 사물함과 복사기 works as one combined subject: the locker and the copier.

So the subject marker 가 is attached once to the whole noun phrase, at the end:

• 사물함과 복사기가 있어요

This is very normal in Korean.

It works like:

• 엄마와 아빠가 왔어요. = Mom and Dad came.
• 커피와 빵이 있어요. = There is coffee and bread.

So 가 applies to the whole pair, not just the second noun by itself.

Yes.

The location phrase 고정석 뒤에 applies to the whole noun phrase 사물함과 복사기.

So the meaning is:

• the locker is behind the fixed seat
• the copier is behind the fixed seat

It does not mean only the copier is behind it.

With existence sentences, 이/가 있어요 is the basic and most common pattern.

So Korean normally says:

• 사람이 있어요. = There is a person.
• 컴퓨터가 있어요. = There is a computer.

Using 는 is possible, but it changes the nuance. It often adds contrast or makes the noun the topic:

• 사물함과 복사기는 있어요.

This can sound like:

• As for a locker and a copier, there are some
• or There is a locker and a copier, though...

So in a simple descriptive sentence, 가 있어요 is the natural choice.

있어요 is the polite present-tense form of 있다, which means to exist, to be located, or to have depending on context.

Here it means there is / there are.

Politeness levels:

• 있어 = casual
• 있어요 = polite everyday speech
• 있습니다 = more formal

So you could also say:

• 고정석 뒤에 사물함과 복사기가 있습니다.

That is more formal, but the meaning is the same.

Yes.

These are all possible ways to say and:

• 사물함과 복사기가 있어요.
• 사물함하고 복사기가 있어요.
• 사물함이랑 복사기가 있어요.

The differences are mostly about style:

• 과/와 = a bit more formal or written
• 하고 = common and conversational
• 이랑/랑 = very conversational

So if you are speaking casually, 하고 or 이랑 may sound more natural in everyday conversation.

복사기 specifically means a copy machine / copier.

It usually does not mean a printer.

For comparison:

• 복사기 = copier
• 프린터 = printer
• 복합기 = multifunction printer/copier/scanner machine

So if the machine is specifically for copying, 복사기 is the right word.