几十年前人们就知道它能破坏臭氧层，但这项新的研究则首次量化了这种危险的程度，并与其他气体做比较。

Its ability to destroy ozone has been known for decades, but the new research is the first to quantify the danger and compare it to other gases.

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EMF是比较新的事物，但前景广阔，对它持续支持的力度也很强。

EMF is relatively new, but it shows promise, and there are good signs for continued support.

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虽然人们普遍认为对于老人来说新技能的学习会比较困难，例如“你不能教会一条老狗新把戏”——但这看起来是个误解。

While there it may be common wisdom that it is difficult for older people to learn new skills - e.g., "you can't teach an old dog new tricks" - that appears to be a misconception.

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