If we always wait for another day, fruitlessly our life will pass away.

如果我们总是等着另一天，我们的生命将徒然流逝。

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I fruitlessly examined the three-inch-thick manual on the “complicated simplicity” of the solar and wind systems in the house.

我翻出那本三英寸厚指南，查看关于这所房子里太阳能和风能系统的“复杂的简朴”，收获甚微。

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Before Steve Jobs returned to Apple, the company had spent several years fruitlessly trying to develop a modern version of the Macintosh operating system.

在乔布斯返回苹果公司之前，公司曾尝试开发新版本的Macintosh操作系统却一无所获。

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Since then, explorers and geographers have fruitlessly sought to identify Thule based on these scant ancient references.

FORBES

Utilities had spent decades fruitlessly attempting ways to provide data to homes and businesses over their ubiquitous wires.

FORBES: Tilting at power lines

She spent hours searching, fruitlessly, for advice on how to fix in-line skates.

FORBES: Heloise hits the Web