She darted a glance sideways at her teacher.

她朝老师瞥了一眼。

youdao

The teacher said, and all my performance at school and told his father, I stole a glance sideways at my father, I saw his eyes full of surprises, disappointments, anger …I quickly hung his head again.

老师说了，把我在学校一切的表现都告诉了父亲，我偷偷瞟了父亲一眼，我看见他的眼睛里充满了惊奇、失望、愤怒…… 我赶紧又低下了头。

youdao

She slid him a sideways glance.

她斜眼看了他一下。

《牛津词典》

Bichel gave me a sideways glance and clapped - too slowly for my liking.

BBC: Facing England's tormentor

He's not looking for the traditional sports image, more the sideways glance that sums up the moment, and in time evokes memories of that time.

BBC: H'away the lads

This move will make Opera even more tempting for Android (phone and tablet) users who would never have given the browser even a sideways glance previously.

ENGADGET