all to no purpose 毫无结果 ; 一事无成
I'd bet that no one deliberately sits down to read with the purpose of not understanding the text.
我敢打赌，没有人特意坐下来阅读却为了不理解文本。
No matter how the day is celebrated, the purpose of these celebrations is to help everyone understand the UN and the important roles it plays in world affairs.
无论如何庆祝这一天，这些庆祝活动的目的都是帮助每个人了解联合国及其在世界事务中发挥的重要作用。
When it's time to make the leap, they take action and immediately drop what's no longer serving their purpose.
当需要向前迈进的时候，他们会采取行动，并立即放弃那些有助于实现目标的事物。
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