pick at
啄,腐蝕;拉,扯;找岔子,挑剔
pick at
v 1: pluck or pull at with the fingers; "She picked nervously at
the buttons of her blouse" [syn: pluck at, pull at]
2: eat like a bird; "The anorexic girl just picks at her food"
[syn: peck at, peck]
3: express a negative opinion of; "She disparaged her student's
efforts" [syn: disparage, belittle] [ant: flatter]