If skin is blistered, it has one or more painful swellings that contain liquid, caused usually by continuous rubbing or by burning.

Despite badly blistered feet, he finished the race. 尽管脚上起了严重的水疱，他还是完成的赛跑。

I played that bass guitar until my thumb was blistered and bleeding. 我弹着那把低音吉他，直到拇指起疱流血。

having hollow rounded swellings on the surface

Roast the peppers until the skins are blistered. 把辣椒烤至表皮起泡。

We sanded down the old blistered paint. 我们用砂纸把起泡的旧油漆磨掉。