单词	simply connected
释义	simply connected adjective : being or characterized by a surface that is divided into two separate parts by every closed curve it contains Word History First Known Use 1867, in the meaning defined above
随便看	drillers drilling drilling cable drilling fluid drilling hammer drilling into drilling machine drilling mud drillings drillman drillmaster drillmasters drillmen drills drills into drillship drillstock drillstocks drilvis drily drimys drimyses drin Drina drink

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