比如说你要用计算机, 可是不知为什么无法开机, 你就可以说. "Hey, What's going on?"  虽然这句就完全等于 "What happened?" 或是 "What's up with that?" 但是老美还是比较比喜欢说 "What's going on?" , 又比如人家问你说, "Why is our oven broken?" 你就可以推的一乾二净地说. "I don't know what's going on." (我不知发生了什么事)