英语词汇“an unknown quantity”的释义、用法及例句-英汉例句词典

词汇	an unknown quantity
例句	Idiom
随便看	heftily hefting hefts hefty hegemonic hegemonies hegemony height heighten heightened heightening heightens heinous heinously heir heirloom heirs apparent heirs presumptive heist heisted heisting heists helical helices helicopter

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