Quadrupole
[化] 四极
🗣️ 情景例句
Mom says we can give her a going-away surprise party.
妈妈说我们可以给她举行一个让她惊喜的欢送派对。
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗？
It follows the shape of the rock.
它顺着岩石的形状。