smooth over

US /smuːð ˈoʊvər/
UK /smuːð ˈoʊvər/
"smooth over" picture
1.

平息, 缓和

to make a problem or difficulty seem less serious or important than it really is

:
He tried to smooth over the argument between his friends.
他试图平息朋友之间的争吵。
The manager tried to smooth over the customer's complaints with a discount.
经理试图用折扣来平息顾客的抱怨。