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来源:雅诚德英语网
He cites the outbreak in the early 1970s of yellow dwarf virus, which threatened to wipe out the world's barley crop.
他以上世纪70年代初黄矮病毒爆发为例,当时的爆发威胁到全球大麦作物的生死存亡。
He cites the outbreak in the early 1970s of yellow dwarf virus, which threatened to wipe out the world's barley crop.
他以上世纪70年代初黄矮病毒爆发为例,当时的爆发威胁到全球大麦作物的生死存亡。