单词	subproblem
释义	subproblem noun sub·​prob·​lem ˈsəb-ˌprä-bləm  : a problem that is contingent on or forms a part of another more inclusive problem Word History First Known Use circa 1645, in the meaning defined above
随便看	thiolic acid thiols thion- thionaphthene thionate thionates thionation thione thionic thionic acid thionines thionins thionium thionyl thionyls thiopental thiopentals thiophen thiophene thiophenes thiophenine thiophenol thiophens thiophosgene thiophosphite

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