Subtractor
[计] 减法单元, 减法器, 减数
🗣️ 情景例句
You pay there. I have the next group to go down. I'll see you soon then.
你在那儿付钱。我带的下一个团就是要下去的。回见！
That man is a teacher,isn't he?
那个人是位教员，对不对？
A simple experiment will help us a little further.
再做一个简单的实验可以帮助我们进一步理解这个问题。