Oxaldehyde
乙二醛, 草醛
🗣️ 情景例句
You don't need to call a plumber, I can fix the sink.
你不必请水管工人了，我会修水槽。
He who makes constant complaint gets little compassion.
经常诉苦抱怨，难以博得同情。
No, I wasn't.
不， 我不是。