他最近活跃于网上社交媒体。

Tā zuìjìn huóyuè yú wǎngshàng shèjiāo méitǐ.

He’s been active on social media lately.

社交媒体上的讨论非常活跃。

Shèjiāo méitǐ shàng de tǎolùn fēicháng huóyuè.

The discussions on social media are very active.

这个社区的居民非常活跃参与各种活动。

Zhège shèqū de jūmín fēicháng huóyuè cānyù gèzhǒng huódòng.

The residents of this community are very active in participating in various activities.