Pulli普利pullv.拉；拖；牵；拔；吸引n.拉；拉力；引力；划船；影响力Pullution Status污染状况pull back spring回位弹簧pullorum disease鸡白痢pull dynamometer拉力计pull over woolly粗毛线套衫Pull-out force拉脱力pull-up effect油蜡变pull down a hall拆掉一个大厅pull up my socksvt.振作起来(鼓起勇气；加紧努力)pull instruction拉指令