教

两间教室都很大。

Liǎng jiān jiàoshì dōu hěn dà.

Both classrooms are very big.

教室里有二十个学生。

Jiàoshì lǐ yǒu èrshí gè xuéshēng.

There are twenty students in the classroom.

我的教室在三楼。

Wǒ de jiàoshì zài sān lóu.

My classroom is on the third floor.