dào / lǐ / yǐ / jīng / jiǎng / de / hěn / qīng / chǔ / le / méi / bì / yào / zài / gēn / tā / fèi / chún / shé

道理已经讲得很清楚了，没必要再跟他费唇舌。

The point has already been explained clearly, so there is no need to waste more time arguing with him.