You see a single roll of grain that's covered in a hard case.

你看到一行覆盖着硬壳的玉米粒。

For instance, these three ladders would put you a single roll from the exit, but cost too many turns to reach by ladders.

例如，这三个梯子会让你从出口滚一滚，但要转几圈梯子才能到达。

Louder and louder she sobbed: " Now poor grandmother is dead and I can never see her any more; and she never got one single roll" !

她哭得越来越大声：“现在可怜的祖母死了， 我再也见不到她了； 她连一卷面包都没有” ！