There was a long chase before the criminal was caught.

追捕了久才抓到。

There was a long interval before he anwsered the telephone.

了久他才回了电话。

Hiya!! Long time no see, huh! How've you been?

嘿！久不见，你还吧？

It's been an age since we met.

我们久未见面了。

Forgive me for my long silence.

请原谅我久没给你信。

After a great deal of toing and froing, I decided not to change jobs after all.

思来想去久，我最终还是决定不换工作。

It’s a long time since I went out on the razzle, but your birthday will be a wonderful excuse.

我久没出去找乐子了，你过生日倒是一口。