单双期期必中导师简介：Luo Xi left a box for Su Can. It was an ordinary iron box with some mottled rust. She told Su Can to look at it later when she went back, but not to open it now.
Luo Xi left a box for Su Can. It was an ordinary iron box with some mottled rust. She told Su Can to look at it later when she went back, but not to open it now.
