there is a relaxed smile on his face.为什么用relaxed?不用relaxing?

问题描述:

there is a relaxed smile on his face.为什么用relaxed?不用relaxing?

这里用relaxed表示,是“他自己的微笑显得轻松”,如果用relaxing,则表示“他脸上的微笑令人轻松”.不是ed修饰人 ing修饰物吗?