Fluctuating
v. 波动（fluctuate的ing形式）
✅ 同义词
🔴 反义词
🗣️ 情景例句
It's so nice out.
外面天气真好。
It's not up to his usual standard.
这次没有达到他平时的水平。
As a matter of fact, it is the other way around.
事实上，情况正好相反。