that's a easy said than done

that's a easy said than done that’s easy said than done的例句 it is easy said than done.为什么用done It's easy to said than done中间的to到底要不要? Forget that,easier said than done Easier said than done It's easier said than done.这句话对吗? Easier said than done .Easy come easy go 求懂英语的帮我翻译下这个句子 翻译:Easier said than done 翻译easier said than done 翻译It's said that to lose a client much easier than go get on It's easier said than done.语法上有错误吗?