Nothing. Just one of these days.

没什么，我就随口一说。

One of these days he'll regret that.

以后情变了肯定会后悔的。

Let's get together one of these days.

找一天聚聚。

One of these days, this computer will be obsolete.

有朝一日，这种电脑会被淘汰。

One of these days, I'm gonna be right.

总有一天会证明我说的是对的。

I'll finish War and Peace one of these days.

总有一天我会读完《战争与和平》的。

OK, yeah, maybe I'll have to try windsurfing one of these days.

好的，可以这几天我还要尝试一下风帆冲浪。

Which one of these days is known as Mexican Independence Day?

哪一天是墨西哥独立日？

One of these days is Yesterday with its mistakes and cares, its aches and pains.

其中一天是昨天，有过错误和忧虑、过失和失误、辛酸和痛苦。

Look, you're going to make vice president one of these days.

不远的将来你将来会成为副主管的。