tā / zǒng'ài / xún gēn wèn dǐ / bǎ / měi jiàn / shì / dōu / nòng de / qīng qīng chǔ chǔ

他总爱询根问底，把每件事都弄得清清楚楚。

He always likes to get to the bottom of things, making everything perfectly clear.