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	laid aside laid away laid by laid down laid eyes on laid fabric laid hold of laid in laid into laid line laid off laid off (of) laid off of laid on laid out laid over laid paper laid siege to laid to laid up laid wire laid-back laid-backness laidly laigh

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