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缺乏维生素A会导致儿童失明甚至死亡。科学家们发明了一种富含维生素A的“黄金大米”本来可以挽救数百万儿童的生命,但这个发明诞生数十年后,仍然被搁置在实验室里。
Lack of vitamin A can lead to blindness or even death in children. Scientists have invented a vitamin A-rich “golden rice” that could have saved millions of children’s lives, but the invention was still in the lab for decades after its birth.