Quadrapole
四极子
🗣️ 情景例句
I think you should call Rita Mae right now.
我想你现在就打电话给Rita Mae。
You have your choice of three flavors of ice cream.
你有3种风味的冰淇淋可选择。
Why are there three prices quoted for this part?
这种零件为什么有三种不同的报价？