Security department
保卫处
🧩 词语组成解析
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
This round table weighs about forty-five pounds.
这张圆桌子重大约45磅。
'I'm trying to repair the bell,' answered Bill.
“我想把这口钟修好，”比尔回答说。