bā / lù / jūn / cǎi / yòng / dōu / chāo / de / zhàn / shù / chéng / gōng / qiē / duàn / le / dí / rén / de / tuì / lù八路军采用兜抄的战术,成功切断了敌人的退路。The Eighth Route Army adopted the flanking encirclement tactic and successfully cut off the enemy's retreat.