0185_beyond a shadow of a doubt

0185 Daily Easy English Expression PODCAST—beyond a shadow of a doubt
中譯: 超越合理懷疑
Dialog at 2:51 and 4:19

A: Who ate my cake? YOU?!
B: No! Tim.
A: Are you sure it was Tim?
B: Beyond a shadow of a doubt.
A: How do you know?
B: Because his face was all chocolaty!