Nothing is known about her parentage and background.
《牛津词典》
2. 尽管有特征说明蘑菇是有毒的，但它们是不一致的，所有来历不明的蘑菇都应该被认为是有危险的食物。
While there are signs that a mushroom is poisonous, they are not consistent, and all mushrooms of unknown origin should be considered dangerous to eat.
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3. 这辆卡车来历不明。
This truck is of unknown origin.
《新英汉大辞典》
4. 医生们起先嘲笑这个来历不明的旅行者。
The physicians at first laughed at the unknown wayfarer.
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5. 在调查中，他们被证明具有来历不明的财产。
On investigation, they prove to have ectoplasmic properties.
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6. 这辆卡车来历不明。
The truck is of unknown origin.
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7. 另外，来历不明的廉价进口药物中可能也存这种成分。
It may also be hidden in cheap imported medicines of dubious origin.
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8. 经过开炮警告，那艘来历不明的船才被迫停了下来。
The unidentified ship was brought to by the firing of a warning shot across its bows.
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9. 女儿与各种来历不明的人厮混在一起，父亲很是恼火。
Father is annoyed that his daughter consorts with all kinds of strange people.
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10. 她声称，为博物馆购买来历不明的古代雕像应该是非法的。
It should be illegal, she declared, for museums to purchase classical statuary whose provenance was unclear.
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11. 不断探索和尝试有无线连接到无线排水来历不明的电池。
Having wifi constant exploration and trying to connect to unknown sources wifi drains the battery.
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12. 旅客最可怕的噩梦，是钱和证件一起遗失，沦为来历不明的乞丐。
He faces the most horrible possibility of losing his money and credentials, which will reduce himself to a pauper of unknown background.
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13. 加上不要从不明网站上下载程序或打开来历不明的电子邮件附件。
Plus, never download a program from iffy Websites or open unsolicited email attachments.
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14. 收到来历不明或可疑的电子邮件请尽快要求IT部门的协助或者直接删除。
Receive the assistance that the unexplained or suspicious E-mail please call it department as soon as possible or delete it directly.
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15. 你开始觉得买新的自行车很傻，那些来历不明的二手车连一半的价钱都不要。
You felt buying new bikes are stupid. Those unexplained bikes not even sale for half price.
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16. 她一直从一个名叫罗宾·赛姆斯的伦敦交易商那里进行购买，哪怕其来历不明。
The purchase went ahead from a London dealer named Robin Symes, even though the provenance was laughable.
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17. 在一个小时内，就有一个来历不明的人将这件事透露给了报社，并引起了恐慌。
Within an hour an unidentified person had leaked the story to the newspapers and started a scare-hunt .
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18. “来历不明就是最好的证据。”云雀干脆地打断了自家首领毫无说服力的反驳。
Coming from who-knows-where is the best proof. "Hibari broke the clan-leader's unconvincing retort simply."
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19. 他还和其他官员一起去他的车库取回一把来历不明的枪，说这把枪曾为受害者持有。
And he went to his garage with other officers to retrieve an untraceable gun he would claim belonged to the victims.
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20. 不是那被遗忘的来历不明的呼吸，而是檐下的熏风，抑或是春天里消融殆尽的冰凌。
Not the breath of the disremembered and unaccounted for, but wind in the eaves, or spring ice thawing too quickly, Just weather.
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21. 现在，该运动正致力于使矿产公司签字接受这些准则，并使珠宝商拒绝那些来历不明的黄金。
The campaign is now trying to get mining companies to sign up to these rules, and jewellers to eschew gold that has come from unacceptable sources.
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22. 对待这些表面上很友好、跟善意的邮件附件，我们应该做的是立即删除这些来历不明的文件。
Treat these apparently the very friendly, mail accessory that follows kindness, what we should do is to delete the file with these unidentified antecedents instantly.
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23. 我之前从没想到还会有这样的理论—冰居然被看作一种来历不明的会对饮料造成潜在污染的东西！
I had never considered this theory before, that ice was a riddle whose origin demanded to be solved, a potential form of drink pollution.
Despite claims about ancient astronauts and unidentified flying objects, there is no firm evidence for past visitations of the Earth by other civilizations.
The worship of central bankers over the past decade has been shown for what it was, a mere shift of blind faith from one group of fallible tunnel-visionaries to another.
In many European cities (eg, Brussels), rubbish sacks must bear a municipal tax symbol, and rogue bags are sometimes searched by police in order to track down culprits.
In many European cities (eg, Brussels), rubbish sacks must bear a municipal tax symbol, and rogue bags are sometimes searched by police in order to track down culprits.
