Definition
To cease or discontinue an activity or endeavor.
停止做某事
I'm too tired; I think I'll call it quits for today.
我太累了；我想今天就到此为止吧。
After hours of trying, they decided to call it quits and give up.
经过几个小时的尝试，他们决定放弃并到此为止。
Since this isn't fun anymore, we should stop and call it quits.
既然这已经不好玩了，我们应该停下来并到此为止。
To mutually agree that all debts or obligations have been settled, and no further payment or action is required.
同意双方债务已清，互不相欠
Now that you've paid me back the money you borrowed, we can call it quits.
既然你已经还了我借给你的钱，我们可以互不相欠了。
We've settled all the expenses, so let's call it quits.
我们已经结清了所有费用，所以让我们互不相欠吧。
I helped you out a few times, and you bought me dinner; let's call it quits.
我帮了你几次，你也请我吃了晚餐；让我们互不相欠吧。