划出关键词与连接词，找出逻辑关系
保留逻辑关系，进行关键词替换

In 1986, there were over 40 million computers in the world, while by 2006, that number climbed to about 800 million, a twenty-fold increase in two decades. (08年9月中口句子听译第2题)

Within a decade of the introduction of the Divorce Act, the total divorce rate rose from 14% of all marriages in 1989 to 30% in 2006. （08年3月高口句子听译第4题）

The report notes that obesity can lead to potentially fatal health problems including diabetes, stroke and cancer. But unfortunately, the obesity epidemic in America is getting worse. （08年3月高口句子听译第1题）

Illegal immigrants put pressure on public schools and hospitals, strain state and local budget, and bring crime to our communities. Yet the vast majority are decent people who work hard and lead responsible lives. (07年3月高口句子听译第3题)

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