https://online1.tingclass.net/lesson/shi0529/0000/643/sl20071227.mp3
https://image.tingclass.net/statics/js/2012
know something inside out對某事相當了解;對某事認識很透徹
During an interview, he was sharp, combative and a bit relieved to be talking about things he knows inside out.
在接受采訪時,他看起來相當的有斗志,談到自己熟知的事務時有如釋重負的感覺。