请输入您要查询的英文单词:
单词
oxygen cycle
释义
oxygen cycle
【
生
】
氧循环
(指大气中的氧在动物呼吸时被转化为二氧化碳后又在植物的光合作用中再生的循环)
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school editions
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-schooler
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英汉双解词典包含548777条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。
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更新时间:2026/4/5 4:32:47