！carefree的副词是carefreely，carefreely中文意思是无忧无虑地

I am an innocent piece of white cloud, with my nimble and graceful posture and movements, I travel carefreely through the blue space.我是一朵天真无邪的白云，灵动着轻盈的舞姿，无忧无虑地遨游蔚蓝的天宇。