Remarkably efficient sailing downwind or well off the wind, square sails do not generate power from their leading edge as in the Bermuda rig, which has become predominant in modern times.

尽管方帆船在顺风或无风航行时十分高效，它们逆风行驶时从帆前缘得到的动力却不如百慕大帆多，而帆前缘的动力在现代成为了主要动力。

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In Nigeria, 3, 500 square kilometers of land become desert each year, making desertificaion the country's leading environmental problem.

在尼日利亚，每年有3千五百平方公里的土地成为沙漠，使沙漠化成为国家最紧急的环境问题。

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I saw the square in the centre of the village. And I saw the crisscross of twisting, turning streets leading to the square.

我鼓足勇气向下看去，看到了村子中央的广场，还看到蜿蜒曲折的街道交错着通向这个广场。

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Traffic on roads leading into Trafalgar Square is targeted for restrictions because planners are preparing motorists for its partial pedestrianisation next summer, when it will cease to be a giant roundabout and become a fairly peaceful public space once more.

ECONOMIST: London's roads

Should he play at the exceptional level of his early Knicks run, when he rocked Madison Square Garden by leading the team to seven straight wins, highlighted by a riveting 38-point night against the Lakers on ESPN, then the Linsanity that was kick started in New York should transfer easily enough, say sports marketing experts.

FORBES: Will Fans Go Linsane For Jeremy In Houston? Don't Bet On It.

There are 14 dark and mossy stone chhatris, each with a square platform and stairs leading to the domed ceilings.

BBC: Orchha, a living medieval town