?我们今天就到这儿吧

... Let me see。让我想一想。 Let's call it a day。我们今天就到这儿吧。 Let's celebrate!让我们好好庆祝一下吧! ...

?今天就到此为止

... It doesn't matter. 没关系/都可以 Let's call it a day. 今天就到此为止 That's it for today. 今天就到此为止 ...

?咱们就聊到这吧

... 言归正传吧 Get in back to the point. 别绕弯子了 Stop speaking in circles. 咱们就聊到这吧 Let's call it a day. ...