1. The Tibetan laboring people no longer suffer from the heavy corvee taxes and usurious exploitation by the serf-owners. The fruits of their labor all belong to themselves, and the enthusiasm of the Tibetan people for production became unprecedentedly high.
西藏劳动人民再不受农奴主的沉重差税和高利贷剥削,劳动果实全部留归自己,生产积极性空前高涨。

-- 来源 -- politics - 汉英

2. In the second 80-year period , the Chinese people, under the leadership of the Communist Party of China , have got united and unprecedentedly organized, overcame numerous difficulties and won one victory after another in their revolutionary struggle.
在后八十年中,中国人民在中国共产党的领导下空前团结和组织起来,冲破重重难关,革命斗争不断胜利;

-- 来源 -- politics - 汉英

3. Are current US gas prices unprecedentedly high?
美国目前的汽油价格是有史以来最高的吗?

-- 来源 -- 汉英 - 翻译参考

4. "This is undoubtedly a good one," the teacher insisted. "Unprecedentedly good! Just listen -- "
洋教师说,“这文章写得当然好,而且绝妙无比,你们听——”

-- 来源 -- 汉英文学 - 散文英译 - mzjy_xishiyoumo

5. unprecedentedly outstanding
空前出众

-- 来源 -- 英汉 - 翻译样例

6. The national crisis and social crisis were unprecedentedly grave.
民族危机和社会危机空前深重。

-- 来源 -- politics - 汉英

7. Be unprecedentedly outstanding
空前出众

-- 来源 -- 英汉 - 翻译样例

8. In the Northern Song Dynasty, the handicraft industry in Kaifeng had attained an unprecedentedly high level of development, with numerous mills and shops, both state- and privately-owned.
北宋时的开封,手工业空前发达,出现了许多官办或私办的工场和作坊。

-- 来源 -- 刘华中国文化 - zhongguowenhua_09

9. Recently, two Shenzhen enterprises successively offered stock in Hong Kong, and the market reaction was unprecedentedly enthusiastic, totally raising a huge sum of capital of nearly 1 billion HK dollars.
两家深圳企业近日先后在香港招股,市场反应空前热烈,共筹集近十亿港元巨资。

-- 来源 -- 汉英 - 翻译参考

10. Globalization of auto logistics, integration of service requirement, not only brings good opportunity of development to China auto logistics enterprises, but also provides unprecedentedly new challenge.
汽车物流全球化、体化的服务需求,不仅为中国汽车物流企业带来了良好的发展机遇,同时也带来了前所未有的新挑战。

-- 来源 -- dict.cnki.net