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
That naughty boy seems to tell his family too many lies.
这个顽皮的小男孩似乎对家人说了很多谎。
All are not thieves that dogs bark at.
犬之所吠，并非皆贼。
What's your favourite kind of music?
你最喜欢什么音乐？