grimacing

基本解釋

Look into your partner's eyes, but avoid grimacing or using negative body language.
正視對方的眼睛，避免做鬼臉或者使用消極的肢體語言。
At first there was a lot of grimacing with their teeth showing because it was probably the first time they had ever seen a reflection.
在一開始照片里有許多他們自己比劃著鬼臉展示他們牙齒的照片，這也許是它們生平第一次看到反光。
Grimacing all the while, I gingerly turned on the shower only to see the nozzle fly off the end and send a jet of water across the room, completely soaking my change of clothes.
我苦著臉，小心翼翼地打開淋浴籠頭，卻不料噴嘴掉了下來，噴出一柱水來直沖到房間的對面，把我的換洗衣服全弄濕了。

He went to the bench grimacing but popped a pill and was back in the game a minute later.
NPR: Larkin Leads No. 5 Miami Past Virginia Tech 76-58
The martyrdom of Archbishop Cranmer, said the don at last, grimacing with embarrassment.
ECONOMIST: Bagehot
One time a grimacing woman leaned on her horn the whole way as she inched her car across a crowded intersection.
FORBES: After Sandy in Manhattan: Now Comes the Hard Part

If you grimace, you twist your face in an ugly way because you are annoyed, disgusted, or in pain.
Grimace is also a noun.