以下为句子列表：
英文: He points out that the NIH has been criticized for focusing too much on the genetics, pharmacology and treatment of obesity.
中文: 他指出，由于过分关注肥胖症的遗传、药理和治疗等方面，国家卫生研究院已经受到了批评。
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英文: In the past few years, scientists have determined that this transparency—critical for focusing light—stems in large part from the unique ability of the lens to activate a self-destruct program in its cells that aborts just before completion, leaving empty
中文: 过去几年，专家已确知聚光所必需的透明度，大部份源于水晶体细胞的独特能力，它们可在发育即将完成时启动自我摧毁程式，变成中空但能续存的细胞，好让可见光通过。
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