How nice would it be to find a note in your pocket telling you that you matter to someone?

在你的口袋里找到一张纸条写着你要对某人做某事是件很有意思的事。

youdao

And how nice would it be if separate units would one day reconnect again when a new relationship blossoms?

如果有一天，当新的关系开花时，分离的两个单元能够重新连接，会有多美好呢？

youdao

It would be very nice if we had a true figure of how many people in this country haven't got a job.

要是我们有一个确切的数字反映这个国家到底有多少人没有工作就好了。

《柯林斯英汉双解大词典》

C.? How long would it still be a nice place to spend one's twilight years?

WSJ: Joe Queenan on Lists of Best Cities to Live In | Moving Targets