No matter how ambitious the plan, you have to roll up your sleeves and start somewhere.

无论你的计划多么宏伟，你都需亲自卷起袖子，从某一点着手。

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Otherwise, it's time to roll up your sleeves and prepare to build the software yourself.

否则，您就需要挽起袖子准备自己动手构建软件了。

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Be sure to roll up your sleeves and trousers and put on the overshoes before you step in!

在进门前请挽起袖子和裤腿，穿上鞋套！

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At a certain point, you need to roll up your sleeves and take action.

FORBES: How To Turn Setbacks Into Business Breakthroughs

So are we ready to do this? (Applause.) Are you all ready to roll up your sleeves?

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

Are you in? (Applause.) You ready to roll up your sleeves? (Applause.) Write that last check.

WHITEHOUSE: The White House