2 sentences for 封闭 (fēng​bì — seal off)

1. 桥封闭了。

   qiáo fēng​bì le.

   The bridge is closed.

   Source: OpenSubtitles

2. 由于大雪，通往山区的道路已经封闭了。

   yóu​yú Dà​xuě, tōng​wǎng shān​qū de dào​lù yǐ​jīng fēng​bì le.

   Due to heavy snow, the roads leading to the mountains have been closed.

   Source: Dong Chinese Dictionary