dí / jūn / fā / xiàn / wú / fǎ / tū / pò / fáng / xiàn / zhǐ / hǎo / zhuǎn / yí / zhèn / dì

敌军发现无法突破防线，只好转移阵地。

The enemy forces found they could not break through the defensive line and had to move their base.