A stretch goal is more challenging.

突破性目标则更具挑战。

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On day three they posted a third project update and announced their stretch goal: five million dollars.

第三天，他们发布了第三个项目，并宣布他们将目标扩展至五百万美元。

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The first requirement for flow is to set a goal that's challenging but not unattainable-something you have to marshal your resources and stretch yourself to achieve.

心流的第一个必要条件是设定一个具有挑战性但不是难以达到的目标——你必须汇集你的资源并尽最大的努力才能完成的事。

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But think of doing your best on a daily basis as a stretch goal.

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With just hours left, the game has hit every stretch goal far surpassing initial expectations.

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"We've had some serious tailwind behind us in recent years, but this is a real stretch goal, " he acknowledges.

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