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
What basic principles do you apply to your life?
你在生活中最基本原则是什么？
What would you like to eat?
你想吃什么？
If I win a lot of money I'll buy you a mink coat.
要是我赢了许多钱，我给你买件貂皮大衣。