答案:
S1 mysterious S2 coupled S3 ruining S4 percent S5 species S6 ensure S7 average S8 When you consider that equals of a quarter the world catch you begin to see the size of the problem S9 some countries are beginning to deal with this problem,but it's vital we find rational ways of fishing S10 It would make sense to give the fish enough time to recover,grow to full size and reproduce