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[高清字幕]Agriculture Report - Researchers Look for Non-traditional Ways to Fight Weeds

来源:慢速英语   时间:2014-02-11 12:27:33

Agriculture Report - Researchers Look for Non-traditional Ways to Fight Weeds

Some weeds are strong enough to resist weed-killing products called herbicides. But researchers are finding natural ways to deal with unwanted plants.

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