zhè / jiàn / shì / běn / lái / bù / fù / zá / nǐ / bú / yào / zài / jiě / shì / de / yuè / miáo / yuè / hēi / le

这件事本来不复杂，你不要再解释得越描越黑了。

This matter was not complicated to begin with, so do not make it worse by explaining further.