"兴" is a Chinese word that means "excited" or "full of energy" in Engpsh. To write it in Engpsh, you can use the word "excited."

For example:

"我很兴，因为明天是我的生日。" (I'm excited because tomorrow is my birthday.)
"他看起来很兴，一定是因为他得到了新工作。" (He looks excited, probably because he got a new job.)

You can also use the word "energetic" to describe someone who is full of energy and enthusiasm.

For example:

"她很兴，总是很有精神。" (She is energetic and always full of spirit.)
"他很兴，总是积极参与每一项活动。" (He is energetic and always actively involved in every activity.)