- 問題詳情:Yearsago,IworkedattheRinglingBrothersBarnum&BaileyCircus.Oneday,asIwaspassingtheelephants,Isuddenlystopped,___21___bythefactthatthesehugecreatureswerebeingheldbyonlyasmallropetiedtotheirfrontlegs.Itwas___22___thattheycould,atanytime,break...
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