单词	pyridazine
释义	pyridazine noun py·​rid·​azine pīˈridəˌzēn, ˌpirəˈdaˌz-, -zə̇n 1 : a liquid feeble heterocyclic base C4H4N2; 1,2-diazine called also ortho-diazine 2 : a derivative of pyridazine Word History Etymology International Scientific Vocabulary pyrid- + azine
随便看	histrios Histrix hists hit hit (on or upon) hit (up) hit (upon) hit a nerve hit a raw nerve hit a snag hit back hit bottom hit for six hit hard hit him like a ton of bricks hit home hit it hit it big hit it off hit it on the nose hit list hit man hit men hit off hit on

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