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单词	Sialidae
释义	Sialidae plural noun Si·​al·​i·​dae sīˈaləˌdē : a family of usually large insects (order Megaloptera) including the hellgrammite, alderflies, and related forms and having the hind wings broad at the base with their anal angle folding in plaits Word History Etymology New Latin, from Sialis, type genus + -idae
随便看	an hour an if an mountains An Nafūd An Najaf An Nhon an open book an ounce of prevention is worth a pound of cure an peninsula an pheasant an photography an sandpiper an shan sheep an sorites an stanza an transfer an' an- an-ch'ing an/per hour ana ana islands anabaenas anabantid anabaptise

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。