Perhaps light is some sort of electric wave, whose nature we do not yet understand.

也许，光是某种电波，其性质咱们尚不清楚。

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Dr Bell, whose work on food consumption concentrates on how we use food to work out who we are, makes this very clear: "'Nature' isn't natural.

贝尔教授关于食品消费的研究主要集中在我们如何从食物中了解自己，他明确地表示：“‘自然’并非天然的，而是文化的。

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Rather, such fiscal uncertainty mirrors the very mechanisms we least understand, namely, the destructive powers of nature herself, whose all too earthly ferocity can turn upside down in an instant every philosophy, economic engine and ethic.

FORBES: Japan's Tragedy: Global Ecological Uncertainty

"We were subjected to vast criticism and not a little personal abuse from personal colleagues and others whose most frequent cry was that we should not play God and we should not interfere with nature, " he said.

WSJ: Robert Edwards, Pioneer of In Vitro Fertilization