Ichthyosaurs had a higher chance of being preserved than did terrestrial creatures because, as Marine animals, they tended to live in environments less subject to erosion.
鱼龙比起陆地的动物有更大的几率被保存下来，因为它们作为海洋动物常生活在腐蚀性较小的环境中。
Vegetation is an indispensable part of terrestrial ecosystem, and the increase of vegetation coverage could effectively slow down the occurrence of soil erosion.
植被是陆地生态系统中不可缺少的一部分，植被覆盖度的增加能够有效减缓土壤侵蚀的发生。
Vegetation is an indispensable part of terrestrial ecosystem, and the increase of vegetation coverage could effectively slow down the occurrence of soil erosion.
植被是陆地生态系统中不可缺少的一部分，植被覆盖度的增加能够有效减缓土壤侵蚀的发生。
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