Alex clenched her fists and gritted her teeth.

亚丽克斯握紧拳头，咬紧牙。

Eric gritted his teeth and vouchsafed them a few more drops of brandy.

埃里克咬紧牙关，又给他们倒了点儿白兰地。

She gritted her teeth against the pain.

她咬牙忍痛。

'Stop it!' he said through gritted teeth.

“住手！”他咬牙切齿地说。

It started to rain harder, but we gritted our teeth and carried on.

雨开始大起来，可我们鼓起勇气继续进行。