以下为句子列表:
英文: 3 On the other hand, C4 photosynthesis seems to have evolved more than 50 times, in 19 families of plant.
中文: 另一方面,C4植物的光合形式已经演化了不下50次,形成了19个植物体系。
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英文: A few years ago, geneticists managed to get rice to produce one of the enzymes needed for C4 photosynthesis by transplanting the relevant gene from maize.
中文: 几年前,遗传学家通过将玉米中的相关基因转入水稻,从而在水稻中成功合成了C4光合作用必需酶的一种。
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英文: On the other hand, C4 photosynthesis seems to have evolved more than 50 times, in 19 families of plant.
中文: 此外,C4光合作用可见于19科植物中,至今可能经历了50次以上的进化。
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