1.
Lacking the protection of insurance or collateral security.
未经保险的未发保险的，无附加担保的
2.
The missive remains unwritten and unsent.
这件公文未写也未发出去。
3.
Mary flounced out of the room without a word.
玛丽一言未发，拂袖而去。
4.
He never utters a word of complaint.
他从未发过一句怨言。
5.
option in respect of any unissued shares
认购未发行股票的特权
6.
Coming events cast their shadows before.
事未发生，先有苗头。
7.
Happily this never happened.
幸好这事从未发生.
8.
He has never been in an accident.
他从未发生过事故。
9.
She didn't utter a syllable at the meeting.
她在会上一言未发。
10.
(of hair) not combed.
（头发）未梳理过的。
11.
IBNR [incurred but not reported ]
已发生未报告［abbr.］
12.
Hannah Jones looks into the future of futurology.
未来学 汉纳 琼斯展望未来学的发展
13.
It is the science of things to come, of impending developments.
它是关于未来事物和未来发展的科学。
14.
This is a block of undeveloped land.
这是块未开发的土地。
15.
An unsuspected disease.
一种未被人发现的疾病
16.
unexpected developments,changes,results
未料到的发展、变化、结果
17.
raw producer gas
(未净化的)发生炉煤气
18.
crude producer gas
未净化的发生炉煤气