Crosby was discharged after two weeks and told that he would have to be on warfarin, a drug that prevents blood clotting, for the rest of his life.

克罗斯比在两周后出院，医生要求他服用一种华法林阻凝剂的药物，这种药物可预防血栓的形成，须终生服用。

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The lock window prevents two queue readers from processing the same queue item.

锁定窗口能够阻止两个队列读取器同时处理同一个队列项。

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In such a case, the OR prevents the two predicates from being applied until after the respective tables have been joined.

在种情况下，OR防止这两个谓词被应用，直至相应的表被加入之后。

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The agreement also prevents two million people from losing unemployment insurance benefits in January by extending emergency UI benefits for one year.

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The latest move comes despite another decision by the court two weeks ago which prevents the government from changing election boundaries.

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The antipathy between Mrs Ciller and Mr Yilmaz prevents co-operation between the two main parties of the right.

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