Oxolation
氧桥合(作用)
🗣️ 情景例句
I really appreciate you coming over to help me with my math.
我真的很感谢你过来帮我补习数学。
I bought one gallon of milk.
我买了一加仑牛奶。
Will you please have the check certified?
那么请开保付支票好吗？