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 UID357454 帖子86 积分102 学分959 个 金币0 个 在线时间16 小时 
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| 1.        In particular, there has been a rise in the number of single person households which increased from 18 to 29% of all households between 1971 and 2002. 2.  Many couples mostly in their 20’s or 30’s live together without getting married.
 3.  They prefer to concentrate on their jobs and put off having a baby until their late 30’s.
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