"Three what?" I asked.

“三个什么东西？”我问。

youdao

The first of our three brains to evolve is what scientists call the reptilian cortex.

我们三个大脑中最先进化的是科学家们所称的爬虫脑皮质。

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youdao

Rates of breast cancer in Japan, Singapore and South Korea are now three times what they were forty years ago.

VOA: special.2009.03.02

So, if we hybridize just these three orbitals, what we're going to end up with is our s p 2 hybrid orbitals.

我们会看到现在有3个未配对的电子，可以成键。

麻省理工公开课 - 化学原理课程节选

what three quantum numbers tell us, versus what the fourth quantum number can fill in for us in terms of information.

三个量子数和,四个量子数告诉我们的信息。

麻省理工公开课 - 化学原理课程节选

It is not a stretch, though, to say that the bankruptcy of one of the Detroit Three, what we used to call the Big Three, would be an economic catastrophe for some parts of the country, and have dramatic and negative effects in all 50 states.

NPR: Expert Examines Impact Of Big Three's Collapse

Step three is what turns a hobby or lifestyle business into a real business.

FORBES: You don't need a better mousetrap, or three steps to start a successful business

Even at that level, that's three times what the price was at the start of 1999.

BBC: The demon is out there