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 .
