Vacillate between
在…之间动摇不定
🧩 词语组成解析
between
[bɪ'twin]
prep. 在…之间;私下，暗中;在…中任择其一;来往于…之间;
adv. 当中，中间;
🗣️ 情景例句
Fine. Are you buying a house
好的。你们是要买房子呢？
Thoroughly to teach another is the best way to learn for yourself.
教学相长。
I'm sorry about that.
这件事我很报歉。