Radiopurity
放射性纯度
🗣️ 情景例句
Well, a wristwatch,
嗯，一个手腕表，
Great winds blow upon high hills.
树大招风。
We offered them food and spoke to them kindly, but they remained motionless.
我们给他们东西吃，客客气气地同他们交谈，但他们却一动也不动。