我们的教室在第二教学楼。

Wǒmen de jiàoshì zài dì èr jiàoxuélóu.

Our classroom is in the second teaching building.

我们的教学楼很新，也很干净。

Wǒmen de jiàoxuélóu hěn xīn, yě hěn gānjìng.

Our classroom building is very new and very clean.

下雨的时候，学生都在教学楼里休息。

Xiàyǔ de shíhou, xuéshēng dōu zài jiàoxuélóu lǐ xiūxi.

When it rains, the students all rest inside the classroom building.