由于极端寒冷，南极州的生态环境尤其脆弱。
Because of the extreme cold, the Antarctic is a uniquely fragile environment.
要改变陕北经济落后的现状，首先要改变陕北脆弱的生态环境。
The first step to change the economic condition is to improve the fragile ecological environment.
这种特征致使岩溶地区的生态环境十分脆弱。
The ecological environment is extremely frail in karsts area.
坝上地区为最典型的生态环境脆弱带。
The Bashang region is a typical vulnerable eco-environmental zone.
西北地区水资源短缺，生态环境相当脆弱。
Northwest China is very short of water resources and its ecological environment is very brittle.
西北地区水资源短缺，生态环境相当脆弱。
Northwest China is very short of water resources and its ecological environment is very brittle.
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