让我确认一下你最后想做什么。事件键可以用来定义产生粒子等效果的时机，播放声音，或在该时机调用一些其他进程，但你想用这个键做什么？
Let me confirm what you finally want to do. Event keys can be used to define the timing that generates effects such as particles, play sounds, or invoke some other process at that timing, but what do you want to do with the key?
