英语词汇keep at retard是什么意思，keep at retard的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	keep at retard
释义	keep at retard　使迟延, 耽误, 阻碍, 妨碍发达[进步]
随便看	sidereal month sidereal noon sidereal table sidereal time sidereal time sidereal variation sidereal watch sidereal year sidereal year sidereal year sidereostat sideretine siderinuria siderism siderite siderite Sideritis sidero- sideroblast sideroblast siderocardiosis siderochrome Siderococcus sideroconite siderocyte

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