VOA慢速英语:World Leaders Urged to Meet Development Goals by 2015

例句：The trees renew their foliage every year.
      树木每年都重新长出叶子。

2.undernourished adj.营养不良的

例句：One morning we came upon an abandoned undernourished puppy on the porch.
      一天早上在走廊上我发现了一只营养不良、被人抛弃的小狗。

3.decline n.下降, 减少, 衰退

例句：There has been a sharp decline in profits this year.
      今年的利润大幅度下降。

4.primarily adv.主要地, 首要地; 本来

例句：I am primarily interested in history.
      我主要对历史感兴趣。

5.severe adj.极为恶劣的; 十分严重的

例句：The party suffered severe losses during the last election.
      该党在上次选举中遭到惨败。

      A severe shortage of qualified staff.
       合格员工的严重短缺

严厉的; 重的

例句：The courts are becoming more severe on young offenders.
      法庭对青少年犯罪者的处罚趋于严厉。