From the outset, we were clear that Spring 2.0 was going to be fully backward compatible, or as near to fully backward compatible as possible.

从一开始，我们很清楚Spring 2.0将会完全向后兼容，或者说尽可能地完全向后兼容。

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The little girl had begun to get antsy facing backward, and it was clear to her mother that it was time.

这个可爱的小姑娘就开始焦躁的面向后面，现在确实是让她的妈妈清楚的时候了。

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The choice between going backward and moving forward has never been so clear.

WHITEHOUSE: Remarks by the President at a Campaign Event -- Fairfax, VA

The frenetic, slightly scrappy opening continued and Scotland went six points clear when Ireland prop John Hayes was penalised for taking a backward step to wheel a scrum.

BBC: Scotland 15-22 Ireland

Messi had been relatively subdued after his early brilliance, but he broke the shackles to burst clear and force another excellent save from Almunia as the Spanish giants refused to take a backward step.

BBC: Arsenal 2-2 Barcelona