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1. The scientist successfully cloned a new species of plant.
科学家成功地克隆了一种新物种的植物。
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2. Cloning is a controversial topic that raises ethical questions.
克隆是一个有争议的话题,引发了伦理问题。
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3. The cloning process involves genetic engineering and can be used to create animals or plants.
克隆过程涉及遗传工程,可以用来创造动物或植物。