fortified area造句怎麼寫

Naval artillery was used in the fortified areas of Red Guard City and coastal bridgehead, thus making up for the shortage of mobile artillery.

"a military attack, such as one launched against a fortified area or place."

subsidiary defenses lying outside the main fortified area.

A television station that got its cameramen to film a crowd trying to get into the Green Zone, the fortified area where many officials work and reside, was ransacked by security forces.