他经常在网上评论时事，表达自己的观点。

Tā jīngcháng zài wǎngshàng pínglùn shíshì, biǎodá zìjǐ de guāndiǎn.

He often comments on current affairs online and expresses his own opinions.

老师鼓励我们每天看新闻，关注国内外的时事。

Lǎoshī gǔlì wǒmen měitiān kàn xīnwén, guānzhù guónèiwài de shíshì.

The teacher encourages us to watch the news every day and pay attention to current affairs at home and abroad.

如果你想参加这次面试，最好先了解一下最近的经济时事。

Rúguǒ nǐ xiǎng cānjiā zhè cì miànshì, zuìhǎo xiān liǎojiě yíxià zuìjìn de jīngjì shíshì.

If you want to attend this interview, it’s best to first learn about the latest economic current affairs.