bǎi zhàn bù dài

ㄅㄞˇ ㄓㄢˋ ㄅㄨˋ ㄉㄞˋ

Idiom

1to come unscathed through a hundred battles (idiom, from Sunzi's "The Art of War" 孙子兵法|孙子兵法); to win every fight