During the class,a girl sitting behind a boy drew a pig and posted it on his back. The boy quickly found it out and pulled it off. The girl asked him,"How did you know there was a pig behind you"
上課的時候,坐在一個男生后面的女生畫了一頭豬貼在他的背上。 那個男生很快發(fā)現(xiàn)了,把豬拿了下來。那個女生問他:"你怎么知道你的后面有一頭豬呢?"