The villagers are busy building defensive works.
村民们正忙着修防御工事。
In the history of Chinese cities, a walled-city is not just a military castle but a settlement with defensive works.
在中国城市史上，城是指构筑了防御性设施的聚落，但它不等同于一般的军事城堡。
The troops must take all measures to strengthen the positions occupied by them, arranging trenches and other defensive works.
各部必须采取一切手段巩固阵地，挖好战壕和准备#好其它防御工事。
The troops must take all measures to strengthen the positions occupied by them, arranging trenches and other defensive works.
各部必须采取一切手段巩固阵地，挖好战壕和准备#好其它防御工事。
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