单词	double helix
释义	double helixˌdouble ˈhelix noun [countable] science, biology a shape consisting of two parallel spirals that twist around the same center, found especially in the structure of DNA
随便看	bonanza Bonaparte bon appetit bonbon bond bondage bonded warehouse bond energy bondholder bonding bond issue bond paper Bonds, Barry bone bone china bone dry bonehead bone marrow bone meal boner bone-tired bonfire bong bongos Bonhoeffer, Dietrich

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