求翻译：城市因为含有各种不同的城市生境（如居住区绿地、城市公园、广场、城市废弃地等）和城市自然遗留地（如森林、河流等）以及近自然生境（如草地、耕地等），往往被认为是一个生物多样性很高的生态系统，所以对于城市中含有生态学价值的生境都应该进行积极的维护。是什么意思？

City contains a variety of city students environment (such as green residential area, city park, plaza, urban waste ground, etc.) and urban natural legacy to (such as forests, rivers, etc.) as well as nearly natural raw environment (such as grassland, arable land), often is considered to be a high b

Because cities contain a variety of urban habitat, such as residential green space, urban parks, squares, urban waste, etc. ) and the urban natural legacy to (such as that of the forest, rivers, etc. ) as well as near natural habitat (such as grasslands, farmland, etc. ) is often considered a biolog

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City because contains various different of city Habitat (as residential area green, and City Park, and square, and city abandoned to,) and city natural legacy to (as forest, and river,) and near natural habitat (as grassland, and farmland,), often is think is a bio diversity is high of ecological sy

Because the city includes each kind of different city habitat (for example community green space, city park, square, city abandons and so on) and the city nature carry-over (for example forest, rivers and so on) as well as the near natural habitat (for example lawn, cultivated land and so on), often