Here's a neat genetic trick: Make a chicken that can get the flu, but can't pass it on to other birds - or, presumably, to the humans who take care of them.

这是一个简单的基因戏法：创造出一种能感染流感的鸡，但是它又不会把流感传染给其他禽类，或者，像设想的那样不会传染给养殖它们的人类。

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Once on level land Jesse let minutes pass as he listened for footsteps or a cough on the logging road, someone left behind to trick him into coming out.

到了平地，杰希听了好几分钟伐木路上的脚步或咳嗽声，有可能会留下一些人好哄他出来。

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Thursday brought an own goal by South Korea and a hat trick from Argentina's Mr. Higuain, one of them on a headed pass from defender Nicolas Burdisso. Then there was Mr.

周四的比赛中，韩国队进了个乌龙球，阿根廷球员伊瓜因上演帽子戏法，其中一个进球是接到后卫布尔·迪索(Nicolas Burdisso)的头球摆渡后破门得分。

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Captain Steven Gerrard was once more revelling in central midfield, and he almost set up Jermain Defoe with a precise lofted pass that the hat-trick hero of Friday's 4-0 win against Bulgaria fired well off target.

BBC: Switzerland 1-3 England

When you pass by his shop, his trick seems simple and obvious.

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That said, the card Merkel has played this weekend is a one-time pass, a Boy Who Cried Wolf trick.

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