Bivariants
双变式
🗣️ 情景例句
I see that you have. Let's get right to it.
我看到你带来了。我们就直接谈正事了。
If you work in a factory,you usually have to punch a clock.
如果你在一个工厂里工作，你通常必须打卡。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。