Nondetectable
不能检测的
🗣️ 情景例句
We need to know about your history with animals.
我们要了解你以前与动物的关连。
Wisdom is more to be envied than riches.
才智比财富，令人更可羡。
I think I failed the French paper.
我想我的法语及不了格，我能回答