Ever since the earliest days of AI, there have been concerns that some day software will take over the world, leaving the fate of humans unknown.

自从人工智能出现以来，人们就一直担心有一天软件会占领世界，而人类的命运却无人知晓。

youdao

Day and night were divided into the same number of parts, so that except at the equinoxes, days and night hours were unequal; and then of course the length of these hours varied with the seasons.

白天和黑夜被分为均等数量的部分，所以除去昼夜平分点，白天和黑夜时间是不等的；当然，这些时长也因季节变化而变化。

youdao

I am sure it was Wednesday because known announcements have been submitted three business days ahead of the posting day.

我确定那是星期三，因为已知的公告是在发布日的三个工作日前提交的。

youdao

said people need to exercise thirty minutes each day for at least five days to get the health benefits of exercise.

VOA: special.2010.06.08

Other days you have more normal intake, or you might be making up for the deficit the previous day and you might have more; and so which of those particular days gets chosen determines a lot on inferences made about a person's overall diet.

有些天你可能吃的比平时多,可以弥补前些天少吃的东西,甚至还要更多,这些特定日子的选择,对推断人的整体饮食,影响很大

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He was sick only two days. They found him the morning of the first day in his room downstairs helpless with pain.

VOA: special.2009.08.01

Was the overwhelmingly Latino population of Rio Mesa lost on the four students who decided to pick that day of all days to celebrate their patriotism?

CNN: When U.S.A! U.S.A! chant is not patriotic

For comparison, Apple has activated around 275, 000 iOS devices per day on average for the past 30 days with a peak of almost 300, 000 iOS devices per day on a few of those days.

FORBES: Steve Jobs' Own Words From His Last Earnings Call

We did narrow it down to our top 10 favorites, though, and we're expecting you to vote for the one you think is best (we'll leave it open until the end of the day for a couple of days).

ENGADGET: photo contest gallery!