job done idiom informal
干得好（某人做成某事时所说的话，尤其是比想象的更容易、更快时）
something you say when someone has achieved something, especially when it seems easier or quicker than you expected
I just changed the fuse in the plug and the lamp worked, job done. 我刚换了插头的保险丝，灯就亮了，轻松搞定。