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He then invested in infrastructure and built massive fortifications .

随后，他把精力投入到基础设施和防御工事的建造上。

Dislodge the enemy from their fortifications .

把敌人从碉堡中逐出。

Better still , you can witness these new structures rising in front of your eyes , built by swarms of hard-hatted migrant labourers , the 21st-century version of the indentured workers of imperial times who constructed the emperor 's palaces and fortifications .

更妙的是，你可以目睹这些新建筑在一大批在你眼前慢慢长高，建造者是一大批带着安全帽的外地民工，他们是帝国时代建造皇宫和要塞的劳工在21世纪的翻版。

The new fortifications seem to be up to the task .

这些新的防御工事看来足以应付这个任务。

The fences and fortifications are made of such grids filled with sand .

这些围墙和防御工事都是在网格状栅栏里填的沙子。