- 走上，登上：
to step up onto the stage
走上舞台
Would you like to step up to the third floor?
请你到四楼来一趟好吗?
- 走近，靠近：
Step up to me, please.
请到我身边来。
- 加紧，加快；增加：
Their salaries have been much stepped up.
他们的工资已大大提高了。
He's stepping up writing his new novel.
他正在加紧写作他的新小说。
- 提升，晋升：
He has been stepped up to the Ministry of National Defense.
他已被提升，到国防部去工作了。
- 逐步扩大(或提高、加速)：
Another harm of this kind of medicine is that you have to step up the quantity when you have taken them for a period.
这种药的另一种危害是，在你服用一段时间之后，你得加大剂量。
- 升高…的电压：
to step up the electric current
升高电流的电压
- 树起，竖立：
to step up markers
竖立标杆