一天，小刚在教室里上课。
One day, Xiao Gang was in class.
叮铃铃……
Tinkling bell
放学了。当时天阴沉沉的，好像要下雨。轰隆隆，打雷了。不一会儿，就下起了大雨。
School is over. It was cloudy at that time, as if it was going to rain. Boom, thunder. Soon, it began to rain heavily.
幸亏小刚带了伞。忽然，他看见邻居家的小弟弟没带伞，站在楼门口，背着书包哭鼻子。小刚就把小弟弟背上，和小弟弟一块回家了。
Thanks to Xiao Gang, I have an umbrella. Suddenly, he saw his neighbor's little brother standing at the door of the building without an umbrella, carrying his schoolbag and crying. Xiaogang put his little brother on his back and went home with him.