VOA慢速英语:Fish Farms May Soon Supply More Than Half the World's Catch

2.represent v.代表, 象征, 表示

例句：The pilots respectfully represented that they were not at all tired.
      飞行员郑重表示他们一点也不累。

      He represented himself to be the Son of God.
      他自称是救世主。

3.headquarter n.总部

4.raise v.抚养; 饲养

例句：The old man likes raising rabbits, chickens, dogs and horses.
      这个老人喜欢养兔子、鸡、狗和马。

      They raised five thousand chrysanthemums last year.
      去年他们种了五千株菊花。

5.yearly adj.每年的, 一年一度的

例句：The flower show is a yearly event in our town.
      我们镇上的花展一年举行一次。

      The earth makes a yearly revolution around the sun.
      地球每年绕太阳一周。

6.harvest n.收成, 收获量

例句：There was a good harvest that year.
      那一年收成好。

7.improvement n.增加或修改

例句：There is room for further improvement in English.
      你的英语尚有进一步提高的余地。

改进, 改善, 改良

例句：Your work shows considerable improvement.
      你的工作显示出相当大的改进。

8.deplete vt.〈正〉使大大的减少; 使空虚

例句：Our supplies of food are rather depleted.
      我们的食品供应大大地减少了。