在世界的那个地方，洁净的水是宝贵的东西。
Clean water is a precious commodity in that part of the world.
各国不能二者兼得：环境更为洁净的代价有可能是污染工业的减少。
Countries cannot have it both ways: the cost of a cleaner environment may sometimes be fewer jobs in dirty industries.
我会这样写：“我可能没有洁净的皮肤，但我喜欢我的眼睛。”
I'll write something like, "I might not have clear skin, but I like my eyes."
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