Stepko斯特普科stepn.步骤；台阶；舞步；步伐v.踏；以步测量step on the accelerator踩油门step ladder instruction步进指令step-up austenitizing阶段升温等温淬火Stephanofilaria zaheeri扎氏冠丝虫step-type transformer阶梯变幅器step-by-step motion步进； 步进动作Steps in Cloning a Gene基因克隆的步骤step and repeat machine逐步反复加工机step and repeat aligner步进重复对准器step tread board support踏板托

1. I scuff the heel of my boot on the step.
   我的靴子后跟在台阶上磨坏了。
2. Mind the step when you go down into the cellar.
   你走到地下室去时要当心台阶。