1 sentence for 保全 (bǎo​quán — security guard)

1. 大楼门口有几位保全在负责安检。

   dà​lóu mén​kǒu yǒu jǐ wèi bǎo​quán zài fù​zé ān​jiǎn.

   There are several security guards at the entrance of the building responsible for security checks.

   Source: Dong Chinese Dictionary