During the second half of the 20th century, the global population explosion was the big demographic bogey.

20世纪下半页，全球人口在爆炸是人口统计学推断出来的最大恶梦。

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He played a shaky first round, with three bogeys and a double bogey, and finished even. Halfway through his second round, he was one over and at risk of not making the cut.

首轮比赛他的发挥并不稳定，有三个柏忌和一个双柏忌，第二轮他超标准杆一杆，又有被淘汰的危险。

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Then, on the 17th, Lewis hit into the bunker off the tee and missed a long par putt to card her second bogey of the back nine.

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Luke Guthrie, tied with Thompson for the 54-hole lead, fell behind with a bogey on the second hole and closed with a 73 to finish third.

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Donald, the world number six from England, recovered from a double bogey on the second with 11 straight pars from the eighth to end with a 71, while Northern Ireland's McDowell had an adventurous round of five birdies and five bogeys.

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