英语词汇to knock是什么意思，to knock的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	to knock
释义	to knock　发出撞击声
随便看	as the proverb says As the saying goes as the spark fly upward acetyl group acetyl group acetyl H acid acetyl iodide acetyl isocyanide acetyl ketene acetyl naphthylamine acetyl nitrate acetyl number acetyl oxide acetyl paramidophenol salicylate acetyl Peroxide acetyl phosphate acetyl piperidine acetyl propionyl acetyl pure yellow acetyl ricinoleate acetyl salol acetyl saponification number acetyl saponification value acetyl scarlet acetyl sulfamethoxypyrazine

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