Pentanal
戊醛
🗣️ 情景例句
I can't thank you enough for all the work you've done.
对于你所做的一切我真不知道如何感谢你才好。
If I wanted to rent a van, how much would it cost?
要是我租一辆搬运车，得花多少钱？
Put them over there, please.
请把它们放到那边去。