John explained away his unfinished task by showing his boss a certificate for sick leave.

约翰交给上司一个病假条，以此解释他为什么没完成任务。

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The certificate for sick leave has become a "hot seller" on the Internet during the World Cup, the Modern Express of Jiangsu reported.

据江苏《现代快报》报道，世界杯鏖战正酣，"世界杯病假条"成为"热销商品"，在网上公然开售。

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This is your sick-leave certificate for a week.

这是你一星期的病假单。

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