1.
Let's get Back to our main subject.
我们言归正题/言归正传。
2.
Well now, back to work!
好啦，言归正传吧！
3.
Cut short the nonsense and return to your muttons .
闲言少说，言归正传。
4.
Now let's return from this digression(to our subject.
现在咱们言归正传。
5.
he kept drifting off the topic; he had been thinking about the subject for several years; it is a matter for the police.
言归正传,别把问题扯开。
6.
resume the thread of one's discourse
言归正传, 回到话题上来
7.
All right. Let's get to the point.
好吧。让我们言归正传。
8.
Talk turkey about it.
言归正传谈谈那件事吧!
9.
Back to business as usua
和往常一样，言归正传了。
10.
Let's get down to brass tacks.
让我们言归正传吧。
11.
to return from the digression
言归正传,闲话少说
12.
Now a quick change to things internal from things external.
好，闲话少说，言归正传。
13.
Cut short the nonsense and return to one's muttons
闲话少说,言归正传
14.
return from the digression
言归正传, 闲话休讲
15.
We are back to business as usual.
跟往常一样，我们还是言归正传吧！
16.
Let's cut to the chase.
我们开门见山吧（言归正传）。
17.
Okay, let's go back to the subject of our discussion of why we smoke.
好﹐言归正传﹐我们从为什么吸烟谈起。
18.
Don't digress too much;keep to the point.
别东拉西扯，还是言归正传吧。