成都的唐昌镇以布鞋闻名。
Tangchang, a town in Chengdu, is well-known for cloth shoes.
几年前，人类的基因曾被添加到老鼠身上，以创建唐氏症模型，让科学家研究这种疾病如何演化，这可能带来有潜力的治疗方法。
Several years ago, human genes were added to a mouse to create a model of Down's syndrome for scientists to study how the disease evolves, which could lead to potential treatments.
麦克唐纳和他的同伴作为原告在麦克唐纳法案中希望保留持枪以自卫，但是这以前是被芝加哥法令所严厉禁止的。
Otis McDonald and his fellow plaintiffs in McDonald wanted to keep handguns for protection but were prohibited from doing so by ordinances in Chicago.
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