He took two steps forward.

他向前走了两步。

《牛津词典》

Two steps forward, one step back.

3前进两步，后退一步 。

youdao

But it's two steps forward, one step back.

可以说我们在向迈前进两步后又倒退了一步。

youdao

This suggests that markets may settle into a pattern of two steps forward, one step back.

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But for every two steps forward James and his redemption take, he moves one step back.

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Two steps forward, then, in the march toward the universal recognition of gay marriage?

ECONOMIST: Success and setbacks in the campaign for gay marriage