quaternary基本解释
adj.第四纪的;四的;四进制的
n.四;四进制;第四纪
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名词复数: quaternaries
基本词汇
adj.第四纪的;四的;四进制的
n.四;四进制;第四纪
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名词复数: quaternaries
"quaternate leaves"
"a quaternary compound"
"the quaternary period of geologic time extends from the end of the tertiary period to the present"