农用化工产品破坏了原始生态系统赖以生存的营养更新的自然循环。
Agrochemicals had destroyed the natural cycles of nutrient renewal that intact ecosystems use to maintain themselves.
然而，人们越来越关注捕鱼和其他人类活动对海洋生态系统的影响，因为现在海洋生态系统远非原始状态。
There is, however, increasing concern about the impact of fishing and other human activities on marine ecosystems, which are now far from pristine.
这是地球上最后一片原始的水生态系统，决不能被摧毁。
This is the last pristine Marine system on Earth and it could get destroyed.
原生态是一个生物学名词，即自然界原始的生态系统。
Primitive ecology is a biological term, ie primitive ecological system of nature.
在那片荒凉而绝美的土地上，充满原始野生状态的自然景观和生态系统。
On that desolate and absolutely beautiful land, be full of the natural landscape of primitive and feral condition and ecosystem.
在那片荒凉而绝美的土地上，充满原始野生状态的自然景观和生态系统。
On that desolate and absolutely beautiful land, be full of the natural landscape of primitive and feral condition and ecosystem.
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