There were three questions. The first two were relatively easy but the third one was hard.

有三个问题。头两个相对容易，第三个困难。

《牛津词典》

All of the following three queries can do that, but the third one tends to perform better than the first two.

下面三个查询都可以实现这一点，但是第三个查询要好于前两个查询。

youdao

They find themselves surrounded, and Paris is one-third the size of London at this same time, or at any other time, but it has a huge circumference.

他们发现自己被包围了，而巴黎的面积相当于当时或其他任何时候伦敦的三分之一，但它的周长很大。

youdao

But in cases with a known cause the experts say salmonella is responsible for more than one-third of hospitalizations.

VOA: special.2011.01.11

actually our third, but the second one we're going to talk about in terms of formal charge, which is thionyl chloride.

实际上是第三个，但它是第二个,形式电荷的例子，也就是亚硫酰氯。

麻省理工公开课 - 化学原理课程节选

One is building new houses, another one is building new apartment buildings that's commercial instead of-- but it's still adding to the housing stock and the third one is improvements of existing houses.

一种是新建家庭住宅,另一种是新建公寓,用于商业用途而非...,也是存量住房的一部分,第三种是现房改造

耶鲁公开课 - 金融市场课程节选

But the third one is that there's some bigger power shifts going on here.

WSJ: World Bank President Shares Thoughts on Europe's Debt Crisis

But the third reason is one of simple arithmetic.

ECONOMIST: France's presidential election

Some of the pay difference is related to college major women tend to pursue lower-paying degrees like education but the researchers found that one-third of the pay gap is unexplained.

FORBES: Unhappy With Your Paycheck? Expect More Work-Family Conflict