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
Please send me a post card.
记住给我寄名信片。
His trousers in the wardrobe.
他的裤子在衣柜里。
Bones were carved into needles and tools, and the teeth were used to make necklaces.
骨头则雕琢成针和工具，牙齿用来作项链。