CONVENTION 你瞧;哎哟;真想不到Lo and behold or lo is used to emphasize a surprising event that is about to be mentioned, or to emphasize in a humorous way that something is not surprising at all. 你瞧;哎哟;真想不到 [humorous, or literary, emphasis]
He called the minister of the interior and, lo and behold, within about an hour, the prisoners were released.
他给内政部长打了个电话,结果你看,不到一个钟头囚犯就给释放了。
I looked and lo! every one of the fifteen men who had been standing with me had disappeared.