same was true for so called "bio-fuel" 20 years ago.

来源: hello2002 于 2019-07-09 10:45:08 [] [旧帖] [给我悄悄话] 阅读数 : (113 bytes)
本帖于 2019-07-09 10:49:39 时间, 由版主 hello2002 编辑

overall human being will always do more harm to the environment, physicologilly there will be excuses.

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