VOALearningEnglish2014.2.12---Researchers Look for Non-traditional Ways to Fight Weeds

VOALearningEnglish2014.2.12---Researchers Look for Non-traditional Ways to Fight Weeds
發佈時間：2014年02月12日
Some weeds are strong enough to resist weed-killing products called herbicides. But researchers are finding natural ways to deal with unwanted plants.
一些杂草是强大到足以抵御杂草杀死的产品称为除草剂。不过，研究人员正在寻找自然的方式来处理有害植物。