This matters, because about a quarter of all deaths in the world have some link to environmental factors.

全世界四分之一的死亡事件都与环境有关。

youdao

Usage of this index is costly because about 100,000 RIDs (record IDs) have to be read from the index before the table CARS is accessed.

使用这个索引会带来较高的成本，因为在访问cars表之前，需要从索引中读取大约100,000个RID(记录id)。

youdao

The concept of a billion dollars is pretty hard to fathom, which is okay because about 99.999% of us will never really have to deal with it.

10亿美元身价是一个很难让人捉摸的概念，因为我们当中99.999%的人从来没有真正体会过它。

youdao

But the F.A.O. representative in Liberia warned about spraying pesticides from airplanes because of the risk of additional water pollution.

VOA: special.2009.01.27

What I am talking about today, I will not be testing you, but maybe you might pay attention because about a month from now we will ask you a few skill testing questions about it.

我说的是今天，我等会不会测试你，但是你可能会重视了,因为一个月之前,我们问了你关于一些测试的技能。

麻省理工公开课 - 固态化学导论课程节选

I guess, I, I think the reason I did is because about the time to do it is college, I think.

我想，我认为我这么做，是因为大学该是时候这么做了。

留学的优点是？ - SpeakingMax英语口语达人

The cost, however, is masked, because about half of new collections are used to repay deposits.

ECONOMIST: India's finances

These higher costs on young people are especially significant because about two-thirds of the uninsured population is under the age of 40.

FORBES: Insurance Analysts: Obamacare to Increase Out-of-Pocket Premium Costs, Despite Lavish Subsidies

That is because about a quarter of these people would be expected to die from cancer even had they not been exposed to Chernobyl's radiation.

ECONOMIST: Nuclear power: Little to fear but fear itself | The