Class and Ass

　　Professor Laurie of Glasgow put this notice on his door："Professor Laurie will not meet his classes today．" A student，after reading the notice，rubbed out the"c"． Later Professor Laurie came along，and entering into the spirit of the joke，rubbed out the"l"．

　　格拉斯哥的勞里教授在門(mén)上貼了這樣一個(gè)通知："勞里教授今天不會(huì)他的班。" 一個(gè)學(xué)生讀了通知后，擦掉了字母"c"。 后來(lái)勞里教授來(lái)了，也想開(kāi)開(kāi)玩笑，他擦掉了字母"l"。