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e_的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 e:
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a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body
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a radioactive transuranic element produced by bombarding plutonium with neutrons
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the cardinal compass point that is at 90 degrees
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the base of the natural system of logarithms; approximately equal to 2.718282...
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the 5th letter of the Roman alphabet
