未曾
hasn't (or haven't); hasn't ever
Example Sentences
该系统的运行状态长期保持十分坚实可靠，未曾发生故障。
gāi xì tǒng de yùn xíng zhuàng tài cháng qī bǎo chí shí fēn jiān shí kě kào, wèi céng fā shēng gù zhàng.
The operating status of the system is always very stable and reliable for a long time, without incidents.
该系统的运行状态长期保持十分牢固可靠，未曾发生故障。
gāi xì tǒng de yùn xíng zhuàng tài cháng qī bǎo chí shí fēn láo gù kě kào, wèi céng fā shēng gù zhàng.
The operating status of the system is always very stable and reliable for a long time, without incidents.
今天上午前往国家图书馆善本特藏阅览室查阅明清地方古籍文献时，碰巧偶遇了多年未曾联络的大学本科同窗好友。
jīn tiān shàng wǔ qián wǎng guó jiā tú shū guǎn shàn běn tè cáng yuè lǎn shì chá yuè míng qīng dì fāng gǔ jí wén xiàn shí, pèng qiǎo ǒu yù le duō nián wèi céng lián luò de dà xué běn kē tóng chuāng hǎo yǒu.
This morning, when I went to the Rare Books and Special Collections Reading Room of the National Library to check out local ancient books and documents from the Ming and Qing Dynasties, I happened to run into a good undergraduate friend who I had not contacted for many years.
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