Yet this palaeontological paradise holds a dark secret: the mass deaths were not caused by a single event.

然而，这片古生物乐土却隐藏了一个秘密：如此大量的死亡并不是一次事件导致的。

youdao

He learns the truth about his past, a dark secret that will make his life and his choices more difficult.

他对他的过去的真相——一个骇人的秘密的了解使他的生活和选择变得更加困难。

youdao

The public was kept in the dark about their secret marriage, which even escaped the sharp radar of the paparazzi .

大众此前对他们的秘密婚姻毫不知情，甚至逃脱了狗仔队的敏锐视线。

youdao

The deep, dark secret of human resources is that traditional job interviews don't work very well.

WSJ: How to Ace a Google Interview

Did the small world of college football know this dark secret as well?

FORBES: End of Entitlement At Penn State

But the deep, dark secret is that Lean In is more about being bold than it is about being female.

FORBES: Lessons From Facebook's Sheryl Sandberg On How To Succeed In Business By Really Trying