Monoether
单醚
🗣️ 情景例句
Oh! I just drop in on him for a chat.
哦，我只是顺便来和他聊聊天。
I won't check this baggage
这件行李我不托运。
Where do you think you are? On a race track?
你认为你现在是在哪儿？在赛车道上吗？