He winced as the dog nipped his ankle.

狗咬了他的脚腕子，疼得他龇牙咧嘴。

He winced as a sharp pain shot through his leg.

腿上一阵剧痛，疼得他龇牙咧嘴。

He winced as a sharp pain shot through his left leg.

他左腿一阵剧痛疼得他直龇牙咧嘴。

Every time he put any weight on his left leg he winced in pain.

每当他的左腿受力时，他就会疼得龇牙咧嘴。

"Okay," he replied and winced as she dabbed the cotton swab over the gash.

当她用棉签轻擦他的伤口时，他应了一声“行了”，还躲了一下。