俚语：On the up and up

英文释义：1）open and honest, legitimate; (2) on the rise.

意为“老实可靠；上升，好转”。

例句：
1. You can take his word for it. He has always been on the up and up.
你可以相信他的话, 他一向老实可靠。

2. Since his operation, father has been on the up-and-up.
父亲手术之后情况越来越好。