Even in America, where complicated federal rules discourage either selling or buying airports, a scheme to privatise Chicago Midway and four other airports is picking up speed again.

即便是在美国，复杂的联邦制度一向不鼓励买卖机场，将芝加哥中途机场和其余四个机场私有化的计划也加快了进程。

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He apparently spent the last four weeks living in a recreational vehicle at a Massachusetts campground, picking up supplies at the camp's small store.

他显然在位于某个马萨诸塞州的露营地的一辆托车上渡过了最后的四个星期，依靠露营地的小商店供应必需品。

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We can set up complex rules to govern how terrain is generated, but for now, start with something simple: Add the terrain types of the four closest tiles to the array before picking them randomly.

我们可以设置复杂规则来控制如何生成地形，但是现在，从简单的内容开始：向数组中添加四个最相邻的图像块的地形类型，然后再随机获取。

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Under caretaker Willie Donachie the Lions ended their run of five straight defeats, picking up four points from his two games in charge.

BBC: Elliott is confident the club can turn around their season

But the industry today is picking up steam by getting construction licenses to build four new units and by getting government funding to develop smaller nuclear reactors that are less expensive and which may be less problematic when it comes to winning regulatory approval.

FORBES: After Fukushima, U.S. Seeks to Advance Small Nuclear Reactors

Scotland, who have never reached the semi-finals, have improved over the past four legs of the series, picking up points in San Diego, Hong Kong, Adelaide and London to climb to ninth in the standings.

BBC: SPORT | Rugby Union | Scotland progress in Sevens event