换脚跳的英文：
jumping step

jumping是什么意思：
adj. 跳跃的
n. 障碍
v. jump的现在分词；跳

Jump, jump, jump the bar As high as you can go.
跳，跳，跳高，跳出你最高的水平。

Jump, jump, over the bar as high as you can go.
跳，跳，跳过去，跳出你最高的水平。

I fairly jumped for joy.
我简直高兴得跳了起来。

He jumped out the window.
他从窗口跳了出去。

There are two types of jumping events:those for height(high jump and pole vault) and those for distance (long jump and triple jump).
跳跃项目有两类：一类是竞赛高度的，如跳高，撑竿跳高；另一类是竞赛距离的，如跳运和三级跑远。

step是什么意思：
n. 脚步；步态，步伐；步骤；措施；阶段，等级；台阶，平台；舞步
v. 踩，踏；跨步，行走；跳舞；使成阶梯状

step by step welding
跨步焊法

It is a step class.
这是踏板操训练班。

They are not in step with the times.
他们跟不上时代的步伐。

the execution of steps
舞步表演

To work step by step is as good as riding in a carriage.
安步当车