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名前:Deadman日付:2014/12/29 09:39:26

I'm sorry, she's pyridium ROBINSON: The research shows that we've been breeding nutrients out of our plants since we first became farmers 10,000 years ago. We didn't mean to. Basically we were modifying wild plants to make them better tasting and easier to produce and easier to prepare, and it's only been in maybe the last 15 or 20 years that we're understanding the consequences of those early choices.