Polytropic efficiency
[化] 多变效率
🧩 词语组成解析
a. [昆]多花采蜜的,多花采粉的
🗣️ 情景例句
My son must have put you to a lot of trouble.
我儿子一定给你带来不少麻烦。
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡，也不会变白。
What's the matter with him?
他怎么啦？