That piece of pudding cake was decorated very beautifully and the price tag indicated that it cost about 40 yuan per box.

Chen Shi said, "This doesn’t prove that it was bought that day. Look at the popsicles in the freezer below."

He opened the freezer and looked at them. These popsicles had long since expired. It was thrown in there from the summer of last year. This couldn’t be used as evidence either.

Peng Sijue said, "You are just as stubborn as Old Lin, but you’re just luckier."

"I'm not only lucky, but my instincts have always been accurate." Chen Shi closed the freezer door and picked up the cake again. "It hasn’t rotted yet. How can we judge when it was bought?”

“Buy a few more and then do a controlled observational experiment.”

"Let's go. There is a commercial street nearby;...