pick out,pick up,pick at,pick on区别?

pick out;pick up;pick over区别 pick out,pick up,pick at,pick on区别? pick at pick from pick up pick out pick up,pick out,pick at的区别 look up,look for,pick out,pick up区别 pick up pick on pick after pick out这四种搭配是什么意思,有什么用法啊 pick up,pick out,pick off,cut off,cut down ,cut up编一段话 pick up pick up pick up She has decided to ___her English,so she asked me to___a couple of dictionaries for her.A pick out;pick up B pick up;pick out C pick out;pick off D pick up;pick off 答案及解析/. pick out = pick in pick pick pick pick pick them up还是 pick up them pick up him还是pick him up