Alkynyl
炔基
🗣️ 情景例句
Yes.
是的。
The best fish smell when they are three days old.
鱼过三天后，再鲜也变臭。
Then he smiled and told me I would receive an extra thousand pounds a year!
然后他微笑了一下告诉我说，我每年将得到1，000 英镑的额外收入。