pickpick out 分辨 挑出 pick up 拾起 接人 无意中学会/得到/听到pick on 挑 选中（某人做某人不愿做的事）pick at 责备 pick at sb for sth 因...责备某人pullpull down 拆毁 拉倒 降低pull together 同心协力pull ...