He staggered back, slipped and fell over the edge of the roof.

他趔趄着往后一退，脚下一滑，从屋顶的边缘掉了下去。

And then, they would send these slips of paper back to us in the crib room.

然后，他们会把这些有字母的纸条传输到夹带房给我们。