Undulatory theory
[化] 波动说
🧩 词语组成解析
a. 波动的, 起伏的, 因波动引起的
🗣️ 情景例句
You're still thinking about something to do, aren't you?
你还在想要找点事做， 是吗？
Judge not according to the appearance.
不要以貌取人。
I'll keep the box in the shade so that the sun doesn't burn the little plants.
我将把盒子放在阴凉的地方，这样太阳就不会把幼苗晒枯。