Bec
abbr. 雇员伤亡赔偿局（Bureau of Employees' Compensation）；商务英语证书（Business English Certificate）
🗣️ 情景例句
I was expecting him here at five forty-five.
我们约好了五点四十五在这里会面的。
Does the back door have a lock on it?
后门上有锁吗？
I'm afraid I'm still not very good at it, though.
不过，恐怕我的汉语还是不够好。