If you are excited, you are so happy that you cannot relax, especially because you are thinking about something pleasant that is going to happen to you. 兴奋的
adjective [原级]激动的,兴奋的;忧虑的,气愤的;已激发的,受激的;性兴奋的
I was excited about the possibility of playing football again. 想到有可能再次踢足球,我很兴奋。