英语词汇四封是什么意思，四封的用法、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	四封
释义	DEFINITIVE EXAMPLES 权威例句〔EXPLODE〕Morrow was convicted in 1998 of sending four letter bombs to government officials. 1998年，莫罗因向政府官员寄送四封邮件炸弹被判罪名成立。朗文写作活用〔message〕There were four messages in my inbox.我的收件箱里有四封邮件。牛津高阶〔sign〕There are four letters here for you to sign.有四封信需要您签字。外研社新世纪
随便看	alternating current blocking alternating current booster alternating current bridge alternating current charging alternating current circuit alternating current computer alternating current contactor alternating current converter alternating current corona alternating current dialing alternating current erasing head alternating current generator alternating current hum alternating current impedance alternating current input alternating current machine alternating current measurement alternating current meter alternating current motor alternating current power alternating current rectifier alternating current system alternating current traction alternating current transmission alternating current tube

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