1 . 步骤
scientists 科学家steps步骤,台阶award 奖励
2 . 步伐
NSN Bearingball bearings androller and quickens its stepsin development recent years ., 以生产中小型轴承起家的通用公司在近年来更加坚定了发展步伐.
3 . 台阶
She went down(沿着...向下走) thesteps(台阶) into the kitchen(厨房), followed(跟随)by her little daughter(女儿).
4 . 措施
on the crack control stepsof light steel keel paper gypsum plank ceiling ., 轻钢龙骨纸面石膏板吊顶裂缝控制措施探讨.