Ondulation
. 波浪式振荡, 波动
🗣️ 情景例句
That's a practicable course of action.
那是一个切合实际的行动方案。
I was sick yesterday,but I'm better today.
我昨天病了，但是我今天好一些了。
Not only had the poor man been arrested, but he had been sent to prison as well.
那个可怜的记者不仅被捕了，而且还被送进了监狱。