Ondulation
. 波浪式振荡, 波动
🗣️ 情景例句
It's my favorite outfit.
这是我喜欢的那一套。
Let's talk about something else.
让我们谈点别的什么吧。
He did a lot of research and travelled around the USA looking for information about his ancestors.
他做了大量的研究，在美国跑了许多地方，了解有关祖先的情况。