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
and his daughter Michelle.
以及他女儿Michelle。
Henry got a toothache and asked to be excused.
亨利牙疼，请求离开一下。
There are also other varieties that do not live in groups at all.
还有别的类型的蜂，它们全然不过群体生活。