1.it is no wonder that one in six children in the uk are classified as fat before they start school.
1.不足为奇的是,英国有六分之一的学龄前儿童被归为肥胖体形.
2.a whole generation will become too unfit to perform even the most basic tasks.
2.整整一代人哪怕去完成一项最基本的任务,也会显得力不从心（或不合时宜）.（貌似句子不完整,表意不明确）
3.where heart disease and cancer have been on a steady increase for the past 40 years.
3.在.,心脏病与癌症病例在过去40年里持续增长.（句子不完整）
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