昨晚下大雨，老房子的屋顶差点塌下来。

Zuówǎn xià dàyǔ, lǎo fángzi de wūdǐng chàdiǎn tā xiàlái.

It rained heavily last night, and the roof of the old house almost collapsed.

桥突然塌了，幸好当时没有车辆经过。

Qiáo tūrán tā le, xìnghǎo dāngshí méiyǒu chēliàng jīngguò.

The bridge suddenly collapsed; fortunately, no vehicles were passing at that time.