Reliabilitysafety
安全性
🗣️ 情景例句
What's wrong, Susan?
有什么问题吗， Susan？
He is planning his future already.
他已经在为将来做打算了。
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。