名词
中文翻译：单链
同义词：
['single strand', 'single thread', 'single line例句：1. The DNA molecule is made up of a series of single strands.（DNA分子由一系列单链组成。）']
例句：
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1. The DNA molecule is made up of a series of single strands.
DNA分子由一系列单链组成。
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2. The scientist used a single strand to solve the puzzle.
科学家用一根单链解决了这个谜题。
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3. The single strand of DNA was found to be responsible for the disease.
单链的DNA被发现是导致这种疾病的原因。