对于某些其他的迁徙物种来说，挑战变得更加复杂——因为跨越的距离更大、管辖范围更广、边界更广、沿途的危险也更多。

And with certain other migrating species, the challenge is complicated further—by vastly greater distances traversed, more jurisdictions, more borders, more dangers along the way.

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在任何特定的办公室里，员工的年龄可从22岁跨越至70岁以上，因此对他们来说，找到共同的沟通风格是个挑战。

In any given office, employees can range from age 22 to 70 and beyond, and finding common ground in communication style can be a challenge.

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本专栏背后的初衷之一就是开发一个跨越数年的项目，以应对实际项目中遇到的典型挑战。

One of the original premises behind this column was to develop projects that spanned several years to face the challenges typical in real-world projects.

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