Undular
a. [物](水跃)波形的
🗣️ 情景例句
Well, he's asleep--finally.
好了， 他终于睡着了。
You look tired. Have you been getting enough sleep?
你似乎累了。睡眠充足吗？
No, less than that. One and a half teaspoonfuls, please.
不，再少一些。请放一勺儿半。