交通事故导致道路堵塞。

Jiāotōng shìgù dǎozhì dàolù dǔsè.

A traffic accident caused a road blockage.

下雨天可能会导致排水系统堵塞。

Xiàyǔ tiān kěnéng huì dǎozhì páishuǐ xìtǒng dǔsè.

Rainy days may cause the drainage system to be blocked.

他们用砖块堵塞了水管。

Tāmen yòng zhuānkuài dǔsè le shuǐguǎn.

They blocked the water pipe with bricks.