Tracheata
[医]有气管亚门
🗣️ 情景例句
Well, here's a twenty.
嗯 ，这是二十美元。
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
I beg your pardon?
请您再说一遍（我没有听清）。