without precedent

基本解释

These are uncharted waters, quite without precedent in peacetime.
这些都是未知水域，在和平时期完全没有先例。
By many indicators, today's security bosses enjoy a combination of power and money without precedent in Russia's history.
很多迹象表明，现在的安全部门大佬们有权又有钱，这跟俄罗斯历史上的情况不一样。
A DECISION by an investigating judge to send Jacques Chirac, a former president, to stand trial in a court is without precedent in modern French history.
调查法官决定将前总统雅克·希拉克送上法庭受审，法国现代史尚无先例。

Of course car buffs know that an exotic-car company selling an SUV is not without precedent.
FORBES: New Info: Maserati and Bentley to Sell SUVs
The opportunity this presents for American Jews who care about Israel is without precedent.
CENTERFORSECURITYPOLICY: Sarah Palin's friendship
The Obama administration's insistence that Senators accede to his efforts to relegate them to rubber-stamps is without precedent.
CENTERFORSECURITYPOLICY: Obama's contempt of Congress