Performic acid
[化] 过甲酸
🧩 词语组成解析
🗣️ 情景例句
Take it easy, sir. I'll need your name, in full, and what's happened.
别着急，给我你的全名和事情的情况。
I used to work until nearly 6:00 o'clock each day.
我过去每天常工作直到将近6:00点钟。
Speak louder，please.
说话请大声点儿。