突破防线 meaning in Chinese

plunge
slant

All the old manuvres that had invariably been crowned with success : the concentration of the battery on one point , and the advance of the reserves to break the line , and the cavalry attack of men of iron , all these resources had been employed ; and far from victory being secure , from all sides the same tidings kept pouring in of killed or wounded generals , of reinforcements needed , of the troops being in disorder , and the russians impossible to move
仍然是以前那些准保成功的方法：炮火集中一点轰击，后备军冲锋以突破防线，接着是des hommes de fer骑兵突击，所有这些方法都用过了，但不仅没取得胜利，且到处都传来同样的消息：将军们伤亡，必须增援，无法打退俄国人，自己的军队陷入混乱之中。