There was a mystery hanging over her antecedents.

她的身世中有一个神秘之处。

《新英汉大辞典》

Fragmented and perilously fragile, this was the key that would allow Blenkin, waiting impatiently back at his base, to begin unlocking a mystery over half a century old.

这个不完整的，一碰就碎的东西是把钥匙，能让回到总部焦急等待的布兰金解开隐藏半个多世纪的一个谜。

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The dried clay surface has a beautiful texture, and there is a palpable aura of mystery over the entire three-square-mile playa.

干枯的地面很有纹理，三英里宽的盆地理也充满着神秘的气息。

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They were the same people who were always trying to annex Cuba; about four times over they tried to annex Cuba, and it's still a bit of mystery how it never happened.

他们与妄图吞并古巴的是同一伙人,他们曾四次试图吞并古巴,这个阴谋最终因何没有得逞倒是个谜

耶鲁公开课 - 美国内战与重建课程节选

Even as some researchers puzzle over the mystery of rare responders, others are finding that the immune system may play a crucial role in how patients react to bestselling antibody drugs.

FORBES: Magazine Article

Despite being pored over by teams of archaeologists and scientists, there is still a lot of mystery over the boat which was unearthed from the banks of the River Usk in Newport 16 months ago.

BBC: NEWS | UK | Wales | South East Wales | Psychic 'reads' medieval ship

Given all this, said jurors after their dismissal, there was a mystery over his motives.

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