They drove us at bayonet point to build blockhouses for them.
他们用刺刀逼着我们给他们修碉堡.
Practice of demolishing blockhouses by controlled blasting
分块对称化碉堡爆破的实践
All these cities were fortified with many groups of blockhouses, and some had high, thick city walls; also, they all had auxiliary defence works, including multiple lines of trenches, barbed-wire entanglements and abatis.
这些城市,都有大量的碉堡群或兼有高大的城墙,并设有多层外壕、铁丝网、鹿砦等副防御设备。
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