Polyetherin
多醚菌素
🗣️ 情景例句
I owe you an apology for what I did last night.
我应该为昨天晚上的事向你道歉。
It's least valuable.
这最没有价值。
He came out of the library, a large book under his arm.
他夹着本厚书，走出了图书馆。