在国外援助下，人们建起了新的学校—一些学校是用砖头建造的；尽管在很多情况下，黑板只是简单地钉在树上。

With foreign help, new schools have been built—some in brick, though in many cases blackboards are simply nailed to trees.

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在屏幕钉在树上，他的后院，他确定了1928年柯达投影机的遮光罩自己的汽车，并把后面的屏幕广播，测试不同的声音与他的水平下降和车窗了。

Afternailing a screen to trees in his backyard, he set a 1928 Kodakprojector on the hood of his car and put a radio behind the screen, testing different sound levels with his car Windows down and up.

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没有路标，地图也很少，他们只好信赖别人给他们所指路的方向以及自己辨认那些钉在树上的暗号：例如，通常过去的向导都会留下向北的路标暗号。

With no road signs and few maps, they had to put their trust in directions passed by word of mouth and in secret signsnails driven into trees, for example-that conductors used to mark the route north.

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