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老大难
释义
老大难lǎodànán[knotty be hard nut to crack be long-standing,big and difficult problem] 形容问题很多,积重难返,不易改进的情况老大难的技术问题
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para-appendicitis
parabacillus
parabacteria
parabanic acid
parabasal bodies
para-Basedow
parabion
parabiont
parabiosis
parabiotic
parabiotic inhibition
parabiotic phase
para-biphenylamine
parablast
parablastic
parablastoma
parable
parablepsia
parabola
parabola controls
parabolic
parabolical
parabolic antenna
paraboloid
paraboloidal mirror
英汉双解词典收录913115条英汉汉英双解翻译词条,基本涵盖了全部常用单词的读音、翻译及用法,是英语学习的有利工具。
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更新时间:2026/6/7 7:06:33