那咱们

then let's

→ 那
phrase Rare #24,845
then let's A conversational way to introduce a suggestion or decision involving the speaker and the listener; 咱们 means “we/us” including the listener.
CH: 那咱们明天一起吃饭吧。
EN: Then let's have dinner together tomorrow.

那咱们跑吧

Then let's run too?

— 活着 (1994)

那咱们怎么办

So what should we do?

— 追击者 (2008)

那咱们一起去吧

Then let's make plans to go together.

— 重庆森林 (1994)

那咱们

Then let’s go.

— 世界 (2004)