It might be zero for some people, but it's actually-- it is--the standard rate for people who have not negligible income is 15%.

对某些收益较少的人来说税率是零,但实际上...,对于大部分投资获利的人来说,标准税率是15%

耶鲁公开课 - 金融市场课程节选

They were worried that if the discount rate is fifty basis points below the Federal Funds Rate then it's going to hit zero and that would be embarrassing; so they moved it.

他们担忧的是,如果贴现率比,联邦资金利率低五十个基本点,那么它将会接近零点,并且那将会很尴尬；所以他们改变了它。

耶鲁公开课 - 金融市场课程节选

And no, it wasn't. When he took away the gold foil the count rate went down to zero.

看看是不是从,其他地方打进来的alpha粒子,但不是，当他拿走。

麻省理工公开课 - 化学原理课程节选