When I am free.总之，when 某人is free. 或者，When I have time. 总之，When 某人has time.
When I am free /when I am in my spare time /when I'm not busy
希望对你有帮助。
In my spare time 或者 when I'm not busy
I'm not bussy!
when you are not busy
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024