Our teacher said in all the years he's taken students out for field work training, he's never seen the Paoyang Lake's water level this low.
我们老师说他带实习带了这么多年，从没见过鄱阳湖的水位这么低。
This is my report: One of the major problems in the Biramichi river is that the level of oxygen in the water is too low.
这是我的报告：比拉密契河的主要问题之一是水中的氧气含量太低。
But because of this very low level tritium getting into the ground water and migrating it shut the laboratory down.
但是由于这个非常低标准的氚，进入到地下水里，迁移了水，关闭了实验室。
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