(一).I think I should be going. 我该走了。

原音重现：

A：I should be going now.
我该走了。

B: Thank you for stopping by our apartment.
谢谢你的来访。

(二).We should get going. 我们走吧。

原音重现：

A：It's very late. We should get going.
太晚了，我们该走了。

B:Please stay for a little while longer.
玩一会儿再走吧。