讲解：
dart a glance / look (at sb)
(朝某人猛然)看,瞥
He darted an impatient look at Vicky.
他不耐烦地朝维基瞥了一眼。

find sb out
查出(坏人)；识破:
He had been cheating the taxman but it was years before he was found out.
他过去一直在欺骗税务部门,只是多年以后才被查出来。

leave sb behind
永久离开(某人、某地或某国):
She knew that she had left childhood behind.
她知道童年已一去不复返了。

sick of sb / sth | ~ of doing sth
(对…)厌倦的,厌烦的,厌恶的:
I'm sick of the way you've treated me.
你对待我的那一套我都厌倦了。

be outnumbered by
(在数量上)压倒,比…多:
The demonstrators were heavily outnumbered by the police.
示威者人数远不及警察人数。

underestimate sb
对…认识不足(或重视不够)；低估；轻视:
Never underestimate your opponent.
决不可低估你的对手。