[no obj.](of a material) come apart or be shed from a surface in scales or layers (物质)片状剥落 the bark exfoliates in papery flakes. 树皮像纸屑一样纷纷落下。 ■[with obj.]cause to do this 使片状剥落 salt solutions exfoliate rocks on evaporating. 水分蒸发后盐的溶蚀使石块成片状剥落。 ■[with obj.]wash or rub (a part of the body) with a granular substance to remove dead cells from the surface of the skin 用粗糙物洗(或搓)(身体某部位)使皮屑脱落 exfoliate your legs to get rid of dead skin. 揉搓你的双腿使死皮脱落。 ■[with obj.](常作 be exfoliated)shed (material) in scales or layers 使(物质)片状剥落