英语翻译: 往前跨二步,往后退三步

take two strides,then take three backsteps.
这样在句型上保持一致，stide本身就向前迈步（跨步）的意思，无需再加forwards等副词。

Proceeds cross two steps, toward retrocedes three steps

Move forward two steps and backward three steps

Two steps forward, then three steps backward.