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。
Of course , these blockhouses now serve for different purposes .
现在的石碉当然有别的用处了.
It can be easily smashed if each advancing enemy column consists of only one unit , whether big or small , has no follow-up units and is unable to station troops along the route of advance , construct blockhouses or build motor roads .
