too good to be true
US /tuː ɡʊd tə bi truː/
UK /tuː ɡʊd tə bi truː/

1.
好得令人難以置信, 難以置信
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.
免費度假的提議似乎好得令人難以置信,結果是個騙局。
•
When something sounds too good to be true, it usually is.
當某事聽起來好得令人難以置信時,通常就是如此。