shuāngrénjiān de fángjià bǐ dānrénjiān gāo.

Literally, it means:

• 双人间 = double room / room for two people
• 的 = linking particle, roughly of
• 房价 = room price
• 比 = compared with / than
• 单人间 = single room / room for one person
• 高 = high

So the literal structure is:

The double room's price, compared with the single room, is higher.

A natural English translation is:

The price of a double room is higher than that of a single room.

Here, 的 links 双人间 to 房价.

So:

• 双人间的房价 = the price of a double room
• literally: double-room's price

This is a very common Chinese pattern:

• A 的 B = B of A / A's B

Examples:

• 酒店的名字 = the hotel's name
• 房间的门 = the room's door
• 单人间的价格 = the price of a single room

In this sentence, 的 makes 双人间 modify 房价.

The pattern is:

A 比 B + adjective

meaning:

A is more ... than B

So in this sentence:

• 双人间的房价 = A
• 单人间 = B
• 高 = adjective

Altogether:

双人间的房价比单人间高。
= The price of a double room is higher than a single room's price.

More examples:

• 今天比昨天冷。 = Today is colder than yesterday.
• 我比他忙。 = I am busier than him.
• 这个比那个贵。 = This one is more expensive than that one.

Good question. In Chinese, prices can be described in two common ways:

• 贵 = expensive
• 高 = high

So:

• 房价高 = the room price is high
• 房间很贵 = the room is expensive

This sentence focuses on 房价 (room price), so 高 fits very naturally:

• 双人间的房价比单人间高。

If you changed the structure, you could also say:

• 双人间比单人间贵。
  = Double rooms are more expensive than single rooms.

Both are correct, but the original sentence specifically talks about price.

Yes, absolutely.

Compare the two:

• 双人间的房价比单人间高。
  = The price of a double room is higher than that of a single room.
• 双人间比单人间贵。
  = Double rooms are more expensive than single rooms.

The meaning is very similar. The difference is mainly in focus:

• 房价高 focuses on the price
• 贵 describes the room as expensive

In everyday speech, 双人间比单人间贵 is often a bit simpler and more conversational.

Because this is a comparison sentence, not a simple statement.

In Chinese:

• In a plain statement, adjectives often need a degree word like 很:
  • 房价很高。 = The room price is high.
• But in a comparison with 比, you usually do not use 很:
  • 房价比那个高。 = The price is higher than that one.

So:

• 双人间的房价比单人间高。 is correct
• 双人间的房价比单人间很高。 is incorrect

You can sometimes add words like 更 or 还 for emphasis:

• 双人间的房价比单人间更高。 = The price of a double room is even higher.

Yes, you can think of 房价 as being omitted after 单人间.

The full version would be:

双人间的房价比单人间的房价高。

But Chinese often omits repeated words when they are obvious. So the shorter sentence is more natural:

双人间的房价比单人间高。

This kind of omission is very common.

Similar example:

• 我的书比你的书新。
• Often shortened to 我的书比你的新。

So here, 单人间 really means 单人间的房价 in context.

Yes, basically.

• 双人间 = a room for two people / double room
• 单人间 = a room for one person / single room

Breakdown:

• 双 = double / two
• 单 = single
• 人 = person
• 间 = room

These are standard hotel terms.

Related words:

• 标准间 = standard room / twin room
• 大床房 = room with a large bed
• 套间 = suite

Here it is pronounced jiān:

• 双人间 = shuāngrénjiān
• 单人间 = dānrénjiān

When 间 means room or space between, it is often pronounced jiān.

Examples:

• 房间 = fángjiān = room
• 洗手间 = xǐshǒujiān = restroom
• 中间 = zhōngjiān = middle

The reading jiàn appears in other meanings, such as:

• 间接 = jiànjiē = indirect

So in hotel-room vocabulary, use jiān.

Yes.

You can say:

• 双人间的房价比单人间更高。
  = The price of a double room is even higher.
• 双人间的房价比单人间高多了。
  = The price of a double room is much higher.

Common comparison intensifiers:

• 更 = even more
• 还 = even more / still more
• 高一点 = a little higher
• 高得多 / 高多了 = much higher

Examples:

• 这个比那个更贵。 = This is even more expensive than that.
• 今天比昨天冷多了。 = Today is much colder than yesterday.

Because 高 is an adjective functioning as the predicate, and Chinese usually does not use 是 before an adjective predicate.

So:

• 房价高。 = The price is high.
• 房价比那个高。 = The price is higher than that one.

Using 是 here would be wrong:

• 房价是高 ❌

You use 是 mainly when linking nouns:

• 他是老师。 = He is a teacher.

But with adjectives like 高、贵、便宜、大、小, you normally do not use 是.

A very natural way is to use 没有 for comparisons:

单人间没有双人间贵。
= A single room is not as expensive as a double room.

Or, if you want to keep 房价:

单人间的房价没有双人间高。
= The price of a single room is not as high as that of a double room.

This is an important contrast:

• A 比 B + adjective = A is more ... than B
• A 没有 B + adjective = A is not as ... as B

Examples:

• 我没有他高。 = I'm not as tall as him.
• 这个没有那个贵。 = This one isn't as expensive as that one.

It is fairly neutral and perfectly natural.

• 双人间的房价比单人间高。 sounds clear and slightly informative
• 双人间比单人间贵。 sounds a bit simpler and more conversational

You might see the original type of sentence in:

• hotel websites
• travel information
• customer service explanations
• textbook examples

So it is not overly formal, but it is a little more explicit because it mentions 房价 directly.