They and others have discovered that the human body actually comprises a couple dozen mini-ecosystems.
他们以及其他研究者已发现人类身体实际上包含一系列微型生态系统（mini-ecosystem）。
Many laws of nature actually exist in nature though they have not yet been discovered.
虽然许多自然规律还没被发现，但是它们确实在自然界中存在。(完全倒译)。
Now Korean researchers have discovered why: men and women actually chew differently.
如今，韩国研究人员发现了其中的原因：原来男性和女性咀嚼的方式不同。
Not having been discovered, many laws of nature actually exist in nature.
人们还没有发现自然当中存在许多法则。
Not having been discovered, many laws of nature actually exist in nature.
人们还没有发现自然当中存在许多法则。
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