"她的家有两层。"

Translation: Her house has two floors.

[AndrewSutl]

What is the difference between 楼 and 层?

[RaphaelNing]

When talking about a particular level of a building, you can use either 楼 or 层: second floor = 二楼 = 二层, although 楼 is more colloquial. When counting the number of levels/stories of a building, each level/story is called a 楼, but you have to use the classifier 层: two stories = 两层楼 (compare: two books = 两本书).

[KX3.]

They mean about the same thing, but if you use 楼 in certain situations it can also mean e.g. your house is on the second floor.

[ShaneNT]

他的家有两层 is not accepted for the transcription exercise.

[wanderdugg]

It only accepts 她 in the answer and not 他。 It should accept both since they sound the same and the sentence could be either without any added context.

[msf7SF]

No idea if anybody among the course authors knows and cares about this. Zero feedback. Not sure if they read the course forum at all.

[Ann55075]

The problem is there is always a written sentence in these exercises- even if you do not see it on your device

so it would be strange to accept 他 where 她 is written, don't you think so?

[MalcolmJames]

Agreed. The ability to hide the text is nice as it helps train your ear but then they should make either he or she acceptable.

[dylanchen19]

诶呦哦擦，怎么什么都不对？我一个中国人居然连这个也答不对，太TMD的悲哀了。