老师在黑板写字。

Lǎoshī zài hēibǎn xiězì.

The teacher writes on the blackboard.

天黑以后，我们就回家吧。

Tiānhēi yǐhòu, wǒmen jiù huíjiā ba.

After it gets dark, let’s go home.

他每天都穿黑色衣服。

Tā měitiān dōu chuān hēisè yīfu.

He wears black clothing every day.