Wavelengh
n. 波长
🗣️ 情景例句
I've never been able to figure him out.
我一直不能理解他。
My brother used to speak French to me all the time.
我的兄弟过去总是对我说法语。
I told her that either I would have to buy a new mower or let the grass grow.
我告诉她，要么买一台新割草机，要么让草长下去。