1 sentence

1. 他们在掩体呆了几个小时，直到袭击结束。

   tā​men zài yǎn​tǐ dāi le jǐ​ge xiǎo​shí, zhí​dào xí​jī jié​shù.

   They stayed in the bunker for several hours until the attack was over.

   Source: CCMatrix