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最近研究显示，他汀（Statins）不仅可以抑制胆固醇合成（lower cholestrol），还能够通过改变心脏的物理性状降低心脏病发作的风险（decrease the risk of heart attacks）。2013年《英国医学期刊》（British Medical Journal）上一份研究称20%的服用他汀的患者出现了副作用（suffered side-effects），从而把他汀推到了舆论漩涡的中心，一时间质疑之声不断。但该文章已被撤稿（subsequently withdrawn）。《柳叶刀》（Lancet）去年9月发表的复审发现，这种每人每月仅需花费2英镑的平价药物不仅安全有效（safe and effective），而且还可以防止心脏肌肉肥厚（thickened heart muscle）和心室变大（a large heart chamber）。

今天的句子:

Scientists using magnetic resonance imaging to scan the hearts of 4,622 Britons found that people taking the drugs were less likely to have abnormally enlarged hearts, a sign of stress and weakness.

词汇突破:

1.Magnetic resonance imaging 核磁共振影像技术

2.Briton大不列颠人，英国人

3.Abnormal 异常的

4.Enlarge 增大

确定主干：

Scientists found that…

切分成分+独立成句：

1. using magnetic resonance imaging to scan the hearts of 4,622 Britons

=Scientists use magnetic resonance imaging to scan the hearts of 4,622 Britons

2. a sign of stress and weakness. 同位语

= enlarged hearts is a sign of stress and weakness.

参考译文：科学家使用核磁共振影像技术扫描了4622位英国人的心脏，发现服用该药的人心脏异常扩大的可能性更小。心脏扩大是压力和疲弱的征兆。

明天的句子：

Wisconsin is preparing to recast its Medical program in ways that no state has ever done, requiring low-income adults to undergo drug screening to qualify for health coverage and setting time limits on assistance unless they work or train for a job.

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