Stepf施特普夫stepn.步骤；台阶；舞步；步伐v.踏；以步测量Stephonine异千金藤碱steplesslyadv.混乱地stepilizer消毒灯step shortvi.缩小步子step flyer梯级step pitch步距stepsistern.异母(或异父)的姐妹step chuck阶梯弹簧夹头step cover轴承盖step speed级速度