I know that each of them is vitally necessary for the other.

我知道每一方面都对其它方面来说是极其重要的。

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You know that the "clearing out" is vitally necessary to make way for the new to take its place.

你们知道“清理行动”是非常必要的，给新的事物清理道路。

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Throughout the book, Dr. Epstein paints an unforgettably nuanced portrait of Western efforts in Africa: well-meaning, vitally necessary and yet often so misguided.

在整个书中，爱泼斯坦博士描绘了一个令人难忘的细致入微的在非洲的西方人努力的形象：善意的，极为必要的，但常常被误导的。

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