And while I mostly refer to fish and fishing in salt water, these same principles apply to the freshwater environment.

虽然我说的主要是指海水鱼和海水鱼的钓法，这些同样的原则亦适用于淡水环境。

youdao

The groundwater environment system of the costal zone is a complicated system which includes the freshwater environment, the tide environment and the salt-fresh water environment system.

海岸带附近的地下水环境系统是容淡水环境、海水潮汐环境、咸淡水混合环境为一体的复杂系统。

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The more derived ambulocetids exhibit more characters likely linked to increasing aquatic adaptation, and they probably were more adapted to the marine realm than to a freshwater environment.

更为进步的游走鲸类具有更多适应于水生生活的特征，而且可能更加适应于海水环境。

youdao

Every year, we withdraw 3, 800 cubic kilometers of freshwater from the environment to satisfy our domestic needs, produce food and energy and manufacture all sorts of goods.

FORBES: World Water Day 2013: Water Can Be Fought Over or Shared, But Cooperation Brings More Benefits for All

These include increasing social disparities and inequity, population growth, climate change, the deterioration and pollution of the environment, the unsustainable use of freshwater and depletion of ocean resources, as well as increasing cases of natural and human-made disasters.

UNESCO: Social and Human Sciences

An international day to celebrate freshwater was recommended at the 1992 United Nations Conference on Environment and Development (UNCED).

UNESCO: World Water Assessment Programme (WWAP)