They feinted and concentrated forces against the most fortified line of the enemy side.

　　他們虛晃一招，然后集中兵力攻打敵方最堅固的陣線(xiàn)。

　　The volunteers were fortified by their patriotic belief.

　　愛(ài)國信念更加堅定了志愿者們的信心。

　　The tower is a relic of grim days when big houses had to be fortified against invaders.

　　這座塔是那些灰暗歲月的遺跡，那時(shí)大房子不得不被加固，以抵御侵略者。

　　The position of that country was fortified by economic recovery.

　　該國的地位因經(jīng)濟復蘇而得到加強。