遗传学是一门在生活中已经引起和将要引起重大变化的科学。

Genetics is a science that has already caused and will cause great changes in our lives.

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也许我国人口无情地增长令人无可奈何，但是我们能在生活中做出小的变化来应对这糟糕生活状况。

There may be nothing we can do about the inexorable population rise in our country, but we can make small changes in our lives to deal with the hell that is other people.

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在生活中，有时我们可能需要去面对一些巨大的，翻天覆地的变化。

At some times in our life, we may need to face up to big, radical changes.

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