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
to work with Dad towards solving that problem?
和爸爸一起来解决这个问题怎么样？
I will happily admit that I am as nervous as a cat on a hot roof.
我承认现在我非常紧张，像热锅上的蚂蚁一样。
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。