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枉费工夫
释义
枉费工夫wǎngfèi-gōngfu[waste one's time and spirit] 徒然浪费时间。形容无意义或不必要的操劳如今要下功夫,且须端庄存养,独观昭旷之原,不须枉费工夫,钻在纸上语。――《朱子语类》
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silicone resin
silicone resin adhesive
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silicones
silicon ethyl
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silicon fluoride
silicon fluride
silicon gate
silicon gate complementary MOS
silicon gate technology
silicon granuloma
silicon grease
silicon halides
silicon hydride
siliconic acid
silicon ifffused epitaxial mesa transistor
siliconing
silicon iron pipe
silicon iron tube
siliconium ion
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更新时间:2026/2/24 1:20:15