当季节变得更分明，植物群落逐渐分开，也就意味着任何一个特定的地区的植物种类多样性都会降低。

When the seasons became more distinct, the plant communities were pulled apart, that meant, in any given area, there was less plant diversity.

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他们的研究集中于茄科（Solanaceae）, 这一物种种类大并多样的植物家族。

Their study focused on Solanaceae, the large and diverse plant family commonly known as nightshades.

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大观园中不仅植物种类多种多样，而且应用的形式和造景手法多变。

The Grand View Garden in plant species diversity not only, but also in the form of application and the design technique for changing.

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