Asweenjoythesummeroceanwavesalongthebeaches,wemaythinkn...
問題詳情：Asweenjoythesummeroceanwavesalongthebeaches,wemaythinknervouslyaboutStevenSpielberg'sJawsandthegreatfearthatsharksinspireinus.Yetwearehappytoseeglobaleffortstoprotectthedecliningnumberofshark...