Contravalid
反有效的, 无效的
🗣️ 情景例句
Well, you all know I'm working on my photo album.
好吧，你们都知道我正在进行我的写真集。
In shifts
轮流
Some live in large groups like the honey bee, and make their nests in trees or holes in the rocks.
有些蜂如蜜蜂是群居在一起，在树上或岩洞里筑巢。