Vacillatory
a. vacillate的变形
✅ 同义词
🗣️ 情景例句
I like to study in the library because it's so quiet.
我喜欢在图书馆学习因为那儿很安静。
Laws catch flies and let hornets go free.
法网只捕蝇，黄蜂由它去。
There was no electricity in my dorm last night.
昨晚我宿舍没电。