Meaning of fēng suǒ:
封锁
to blockade; to seal off; to lock down
Tāmen juédìng línshí fēngsuǒ zhè tiáo dàolù.
他们决定临时封锁这条道路。
They decided to temporarily blockade this road.
Jǐngfāng juédìng fēngsuǒ zhè tiáo jiēdào, yǐ bǎozhàng ānquán.
警方决定封锁这条街道,以保障安全。
The police decided to seal off this street to ensure safety.
Yóuyú yìqíng jiājù, zhèngfǔ juédìng duì chéngshì jìnxíng fēngsuǒ.
由于疫情加剧,政府决定对城市进行封锁。
Due to the worsening pandemic, the government decided to lock down the city.