名词
中文翻译：染色体异常
同义词：
['chromosomal abnormality']
例句：
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1.Chromosomal abnormalities are a major cause of congenital heart defects.
染色体异常是先天性心脏病的主要原因。
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2. The study found that chromosomal abnormalities were significantly associated with the risk of cancer.
研究发现，染色体异常与癌症风险显著相关。
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3. Chromosomal abnormalities can lead to developmental disorders and mental retardation.
染色体异常可能导致发育障碍和智力低下。