B2 [ I or T ] to cut or damage a surface or your skin slightly with or on something sharp or rough抓；搔；擦；划

B2 [ T ] If you scratch something on or off a surface, you add it or remove it by scratching.刻；刮

B2 [ I ] If an animal scratches, it rubs something with its claws (= sharp nails).（动物）用爪子抓，搔

B2 [ I or T ] to rub your skin with your nails（用指甲）搔，挠

[ I or T ] to remove yourself or another person or an animal from a competition before the start（使）退出比赛

[ T ] UK usually scrub informal to decide not to do something you had planned to do取消（原计划）

B2 [ C ] a mark made by scratching抓痕；擦痕；划痕；刮痕

[ S ] UK an act of scratching（人或动物的）搔，挠