中國網站品牌欄目（頻道）
The teacher came up with a good problem. "Suppose," she asked the second-graders, "there were a dozen sheep and six of them jumped over a fence. How many would be left?"
"None," answered little Norman.
"None? Norman, you don't know your arithmetic."
"Teacher, you don't know your sheep. When one goes, they all go!"
