世界各国政府必须制定法律来保护国内外环境。
It is imperative that governments around the world should enact laws to protect the environment both at home and abroad.
国内外环境因素的影响。
它实际上是当时特殊的国内外环境下的特殊产物，缺乏在中国生存的现实环境。
This was in fact a specific outcome of the particular domestic and foreign environment at the time, but there was no real environment in which it could exist.
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