一眼[yī yǎn]
a glance:
例：一眼看见某物
see sth. at a glance;
向...看一眼
cast a glance at;
她偷看了马丁一眼。
She stole a glance at Martin.
她瞟了一眼睡着的孩子，随即匆匆离开了。
She glanced at the sleeping child and then hurried away.
他一眼就能看出错误。
He has a quick eye for mistakes.
我看了她一眼。
I gave her a glance.