英语词汇“tetrad”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tetrad
释义	tetrad noun DEFINITIONS2 1 a group or set of four thingsSubmitted from: United Kingdom on 28/09/2015 Open Dictionary - September2015 2 astronomy four successive total lunar eclipses over a period of two yearsSubmitted from: United Kingdom on 28/09/2015 Open Dictionary - September2015 Noun☞tetrad
随便看	roadway roadwork roadworks roadworthy roam roaming roan roar roaring roast roasting rob robata robber robber baron robbery robe robin robin hood robin hood tax robo- robocall robocar robosigning robot

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