Teac
[医] 氯化四乙铵
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
Do you like football?
你喜欢足球吗？
when the plane suddenly turned round and flew back to the airport.
这时飞机突然调转头来，飞回了机场。