善,可以很大,如捐资助学,向贫困国家进行援助;善,也可以很小,我就接受过这样一个小小的善。那是三年前的一天,我和爸爸、妈妈去上海旅游。我在一家饭店里吃完早饭,便到洗手间去洗手。我洗完手后,发现水池上有一个盒子似的东西。我知道是烘手机,可却不知道怎样使用它来烘干手上 Good, can be great, such as donations to aid students, poor countries to aid; good, can be small, I have accepted such a small good. That was three years ago, I went to Shanghai with my father and mother. I eat breakfast in a restaurant, went to the bathroom to wash their hands. After I washed my hands, I found a box-like stuff on the sink. I know it's a hand dryer, but I do not know how to use it to dry my hands