Catch cold 感冒

Put on a coat or you'll catch cold!

Cold shoulder 冷淡地看待，不理一个人

IsawBobattheparty,buthegavemethecold

shoulder! How can he be like that?

Hot and cold 犹豫不决

Melissa kept blowing hot and cold about studying

abroad and I told her,girl, make up your mind.

Get cold feet临场退缩

Annagotcoldfeetandnevershoweduptoher

wedding ceremony! I feel so bad for her fiance!

Quit cold turkey 断然戒掉一个习惯（通常换习惯）

Have you ever quit something cold turkey? It's not

easy, I could never quit drinking coffee cold turkey!

Cold as ice非常冷

My hands are cold as ice!