too good to be true

US /tuː ɡʊd tə bi truː/
UK /tuː ɡʊd tə bi truː/
"too good to be true" picture
1.

好得令人难以置信, 难以置信

so good as to be unbelievable; highly unlikely

:
The offer for a free vacation seemed too good to be true, and it was a scam.
免费度假的提议似乎好得令人难以置信,结果是个骗局。
When something sounds too good to be true, it usually is.
当某事听起来好得令人难以置信时,通常就是如此。