为什么睡觉时会流口水“丁零零——”清脆的下课铃声响起,宣告了早读的结束。徐风伸了一个大懒腰,有人拍了拍他的肩膀,回头一看,是小林。“班长,你刚刚早读是不是睡着了?我看你不停地在打哈欠。”小林揶揄道。徐风打了个哈欠说:“那是在和瞌睡虫作斗争,我可没睡着。你看那边——”徐风指了指另外一桌的冬瓜,“这才是真正地睡着了。” Why drooling when you sleep? “Ding zero -” crisp bell ring after class, declared the end of the morning reading. Xu Feng stretch a big lazy, someone patted his shoulder, look back, Kobayashi. “Squad leader, did you just fall asleep early reading? I see you keep yawning. ” Kobayashi grumble. Xu wind yawned and said: “It is in sleep and sleepy insects, I can not sleep. Look over there - ” Xu Feng pointed to another table of melon, “This is the real Asleep. ”