1.replace vt.取代, 代替; 更换, 替换, 更新

例句：A modern prison has replaced the Victorian one.
      一所现代化的监狱取代了那所维多利亚时代的监狱。

      I will replace the cup I have broken with a new one.
      我愿用一只新杯子赔还被我打碎的那只。

2.crossroad n.交叉路,岔道,十字路口

例句：Alex stands at the crossroads at present.
      爱历克斯现在正面临抉择。

3.smash vt. 打碎

例句：She smashed the hammer down onto the box.
      她用锤子猛击箱子。

4.unconscious a.失去知觉的,不省人事的;无意识的,不知不觉的

例句：I was rendered unconscious by the blow.
      猛烈一击使我失去了知觉。

1.General Hooker had rebuilt the Army of the Potomac. Now he was ready to carry out his plan against General Lee.

carry out开展,贯彻,执行,履行,实现,完成

例句：Extensive tests have been carried out on the patient.
      对患者进行了多次试验。

2.Hooker sent new orders: break off the fight. Return to Chancellorsville. Put up defensive positions.

break off突然中断或停止;折断,使中断,使脱落,与…断绝关系

例句：Telegraph communication was broken off.
      电报通讯已经中断。

3.The Union army could not break through.

break through突破,冲破;战胜,克服

例句：Demonstrators tried to break through the police cordon.
      示威群众企图突破警察的封锁线。