When a hatter measures the circumference of your head, he's trying to work out what size of hat would fit you.
当一位制帽商测量你的头围时，他是为了找出适合你的帽子型号。
2
You, because of your size, were able to reach the hat on the wall, but having lost it, you were unable to get it back.
你，因为你的身高，能够到墙上的帽子，但是帽子丢了，就无法找回。
3
To his surprise it wasn't a doll at all, but a man of the tiniest size. He had a little wool shirt with old fashioned britches and a high tall hat much like a witch's.