Fluctuations
n. 起伏现象；变动；波动（fluctuation的复数）
🗣️ 情景例句
You may well say so.
你可以这么说。
If I had known her telephone number, I would have called her.
如果我知道她的电话号码，我就给她打电话了。
You were very angry!
你火气真大！