We may as well exchange good-by and go separate ways.

我们还是互道再见，分道扬镳吧。

youdao

Two cars gave them the freedom and mobility to go their separate ways.

两辆汽车给了他们自由和行动的便利，使得他们能够各走各的路。

《柯林斯英汉双解大词典》

Sue was 27 when she and her husband decided to go their separate ways.

27岁时苏与丈夫决定分道扬镳。

《柯林斯英汉双解大词典》

Today's summit is not lip service. We are not going through the motions, and pay tribute to one another, then furl up the flags then go our separate ways."

VOA: special.2009.11.13

"Today's summit is not lip service. We are not going to go through the motions and pay tribute to one another and then furl up the flags and go our separate ways.

VOA: standard.2009.11.05

"Normally we run together for the first 5k and then go our separate ways, " he said.

BBC: Thousands take part in 2012 Bristol Half Marathon

So for the time being, Japanese and foreign firms will largely go their separate ways.

ECONOMIST: Japanese finance: Rich pickings for the gaijin | The

Why then did the DoJ and Schneiderman go their separate ways in the credit rating agencies investigations?

FORBES: Eric Schneiderman Is The Biggest Threat To S&P, Moody's And Fitch