Chem
abbr. 化学（chemistry）
🗣️ 情景例句
You look as fit as a fiddle.
你看起来非常健康。
To fall off a bench
从长椅上掉下来
It is hard for energetic, quick-minded people to waste time,
他们常常受到责备，精力充沛、头脑敏捷的人极不愿意浪费时间，