很多人说，或许当我们还处在原始人时代的时候，他们就从外星来到地球改变我们的DNA和其他遗传形式。

Many people say that they probably came to this planet and altered our DNA and other genetic forms while we were still primitives?

youdao

关于外星来客的出现以及我们可能面临的地球改变的核心问题，以下是对目前所知情况的一份详细的尝试性总结。

The following is a detailed summary of our tentative, current understanding of the core issues related to the presence of the visitors, and the possible earth changes that may be ahead of us.

youdao

我们实际上改变了地球大气层的化学成分。

We have literally altered the chemistry of our planet's atmosphere.

《柯林斯英汉双解大词典》

Nothing that happens here on Earth can change or alter or destroy the number three.

在地球上发生的任何事都不能,改变或者消灭数字"三"

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