冷若冰霜

冷若冰霜 [lěng ruò bīng shuāng]

1. ■ as cold as ice and frost -- stern manner; as chill as an icicle; cold as charity [ice]; frosty; frosty in manner; have an icy [chilly] manner; never to depart in the slightest degree from one's cold demeanour towards ...; severe looks; treat sb. coldly:

教师对待学生不应该冷若冰霜。 Teachers should not treat their pupils coldly.