Undular
a. [物](水跃)波形的
🗣️ 情景例句
We might need you to come through with your friends, Robbie.
我们也许需要你们多邀朋友来帮忙， Robbie。
Don't forget to invite him.
不要忘记邀请他。
How many spiders are engaged in this work no our behalf?
有多少蜘蛛在为我们效力呢？