míng / zhī / shí / lì / xiāng / chà / xuán / shū / hái / yào / yìng / pīn / wú / yì / yú / jī / dàn / pèng / shí / tou

明知实力相差悬殊，还要硬拼，无异于鸡蛋碰石头。

Knowing the difference in strength is huge, insisting on fighting is no different from an egg hitting a rock.