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
It's hard to do anything but listen in this family.
在这个家庭 除了听别人之外还能怎样。
What's your favorite song?
你最喜欢的歌曲是什么？
Look! What does that boat look like?
瞧！那艘船看起来像什么呀？