no reserve

基本解释

The emerging markets account for almost half of global GDP but have no reserve currency of their own.
新兴市场中南局全球GDP的半壁江山，却没有自己的储备货币。
In fact, most banks have no reserve requirements at all on savings deposits, CDs and certain kinds of money market accounts.
实际上，绝大部分银行对储蓄存款，定期大额储蓄存款和某几种类型的货币市场账户根本上就没有准备金。
Then again, with true no reserve in today's weak market, where the world is still flooded with unwanted yachts, it could go for much less.
在如今这个仍充斥着无人问津的游艇的世界中，在疲弱的市场上进行真正的无底价拍卖，最终的成交价可能会比这少的多。

"Interest rates fixed by the Federal Reserve is price fixing and it should have no part of a free market economy."
The real difference between Federal Reserve Bank System of 1913 the most important difference and the Federal Reserve System of today is that we are no longer on the gold standard.
913年的联邦储备银行系统与,当今的联邦储备银行系统之间3,不同点在于,最重要的不同点,我们不再以金本位为基础了。
耶鲁公开课 - 金融市场课程节选

It's a fractional reserve system with no reserve requirements and no central bank control.
FORBES: Sound Advice Worth Repeating
The consigner I heard turned apoplectic as there was no reserve price put on the piece.
FORBES: Is Art Gold Or Vice Versa?