Against our better judgment, we buy the products of manufacturers whose claims seem too good to be true.

明知不可取，我们还是买了那些自我宣传好得令人难以置信的厂家的产品。

《柯林斯英汉双解大词典》

On the whole the celebrations were remarkably good-humored and peaceful. It seemed almost too good to be true.

大体上说，庆祝活动非常快乐祥和，似乎好得令人难以置信。

《柯林斯英汉双解大词典》

When something sounds too good to be true, it usually is.

当某件事听起来好得令人难以置信时，它通常是真的。

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One visitor,a former Navy man,once said: "The only good thing about my fighting in the war was that I was too young to be terrified."

VOA: special.2009.05.25

but I think it's, you know, a good practice, especially to be learned here in the United States, too.

但是我觉得这样，是很好的练习，特别是在美国做生意也有学问。

学习外语的重要性 - SpeakingMax英语口语达人

And that was the most important thing for him." Abdul-Jabbar said at first he felt this was too good to be true, but he said he realized it was not after a month or two of seeing Wooden at work.

VOA: standard.2010.06.05

He has proven to be too good an investor so far for people to pull out.

FORBES: Paulson Calms Investors After SEC Charges Goldman

But for drug development, the promise of these new cells is likely to be too good for companies, Big Pharma and biotech alike, to pass up.

FORBES: Magazine Article

The bottom line is that graphene is too good to be ignored and - in some applications - may yet prove to be too good to be true.

BBC: Is graphene really a wonder-material?