这个房间很大啊！

Zhège fángjiān hěn dà a!

This room is so big!

我的房间里有一部大电视。

Wǒ de fángjiān lǐ yǒu yí bù dà diànshì.

There is a big TV in my room.

今天晚上，我们一直在房间里看电视聊天。

Jīntiān wǎnshang, wǒmen yìzhí zài fángjiān lǐ kàn diànshì liáotiān.

We were inside the room watching TV and chatting all night.