Naphthaldehyde
萘甲醛
🗣️ 情景例句
He always seems such a happy guy.
他似乎永远是个快乐的人。
We'll start with an orientation video. It runs about 15 minutes.
我们将从一个电视简报开始，大概放15分钟。
That sounds a great idea. Good luck with your trip!
听起来真是个好主意。祝你一路顺风。