All right, so last time we started to study imperfect competition.

上一节课,我们开始学习不完全竞争

耶鲁公开课 - 博弈论课程节选

Let me disclaim, too, we're by no means perfect so the Harvard courses APP that a lot of you used on the web to shop for courses, we recently sent out a form to get feedback from everyone because we don't doubt that it was imperfect the first time around, but we're going to iterate and make amends with that.

我不是说，我不是说要完美,你们大部分使用哈佛大学课程APP来在网上选课,我们最近给你们发了一个表单，从你们那里,得到反馈，因为我不怀疑,第一次时它是有瑕疵的,但是我们将反复地道歉。

哈佛公开课 - 计算机科学课程节选

This public humiliation is not the first time that an imperfect messenger has been discredited entirely because of unethical behavior.

FORBES: No Wonder We're Losing Jobs: Science In Our Culture Is Under Assault

But now, the dialogue has changed, and for perhaps the first time this winter, it is possible this imperfect union could end.

WSJ: The Yankees' Next Steps

And yet the relation between economic data - which are often imperfect, and can only represent the state of an economy as it was some time in the past - and the future is tenuous at best.

BBC: A Point of View: And all shall worship money