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单词
helix
释义
helix n (pl helices ) spiral, either like a corkscrew or flat like a watch-spring 螺旋 Some biological molecules have the form of a helix. 有些生物分子呈螺旋状.
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permanganate
permeability
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pernicious
pernicious anaemia
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更新时间:2026/7/27 21:52:22