Detailed topographical maps of the kind commonly used by ramblers inother countries are strictly classified. Schoolchildren get no trainingin how to read them.
在其他国家中漫步者使用的那种详细地形图被严格设定密级。
Detailed topographical maps of the kind commonly used by ramblers inother countries are strictly classified. Schoolchildren get no trainingin how to read them.
在其他国家中漫步者使用的那种详细地形图被严格设定密级。
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