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用fulcrum造句子,“fulcrum”造句
Soofthefulcrumhaveno.Resistancepointisthefulcrumandtheforcepoints.Givemeafulcrum,Icanpryuptheearth.Iranisthefulcrumofanunstableregion.Amember,suchasabeam,thatprojectsbeyondafulcrumandissupportedbyabal...
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