1.That would be too good to be true.
too good to be true 好得令人难以置信;太好而有失真实
On the whole the celebrations were remarkably good-humoured and peaceful. Indeed, it seemed almost too good to be true.
总体上,庆典活动一派快乐祥和 。事实上,简直好得让人难以置信 。
Your new job sounds too good to be true -- interesting work, high pay, short hours. Isn't there any fly in the ointment?
你的新工作听起来实在太好了—工作有趣味,待遇高,时间短 。有什么美中不足的地方吗?