zhè gè / fù zá / de / wèn tí / jiǎn zhí / shì / yī duī / luàn má / xū yào / màn màn / shū lǐ

这个复杂的问题简直是一堆乱麻，需要慢慢梳理。

This complex problem is a real mess that needs to be sorted out gradually.