A mangy-looking dog is munching biscuits from a scuffed floor.一只癞皮狗正在磨坏的地板上大嚼饼干。Her washing machine tends to fray edges on intricate designs.她的洗衣机经常会把织物上的一些复杂图案的边缘磨坏。If you drive as fast as this all the time, you'll wear the brakes out.如果你老是把车开得这么快，你会把刹车磨坏的。