Eca
(联合国)非洲经济委员会
🗣️ 情景例句
Do you ever think about other people?
你从来就不考虑考虑别人吗？
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
Are you going to ship this by air?
这批货你要用空运的吗？