flit
verb [ I usually + adv/prep ] uk/flɪt/ us/flɪt/ -tt-
轻快地飞（或移动）
to fly or move quickly and lightly
In the fading light we saw bats flitting around/about in the garden. 天色渐暗时，我们看到蝙蝠在花园里飞来飞去。
figurative She's always flitting from one thing to another (= changing her activities). 她总是一会儿做这个，一会儿做那个。
（在脑海或脸上）闪现，闪过
to appear or exist suddenly and for a short time in someone's mind or on their face
A ghost of a smile flitted across his face. 他脸上闪过一丝微笑。