N-valeraldehyde
[建] 正戊醛
🧩 词语组成解析
🗣️ 情景例句
They're open.
店开着。
It's no use pumping a dry well.
徒劳无益。
At first I thought I'd done the right thing, but I soon realized that I'd made a mistake.
开始我以为我做对了，但是很快就发现自己犯了个错误。