n.防御工事（尤指堡壘、要塞城墻等）
In the distance the fortification of an Afghan army and police post was visible. 遠處，可以看到阿富汗政府軍的防御工事和警察的據(jù)點。
n.防御工事
名詞fortification的復(fù)數(shù)形式.
