这要花大约三周时间，出入不过一天左右。

It'll take about three weeks, give or take a day or so.

《牛津词典》

这种想法出现于公元1800年左右，当时人口变得足够多，大约有10亿人，人类的活动开始能够改变环境。

The idea is that around the year 1800 CE the human population became large enough, around a billion people, that its activities started altering the environment.

youdao

在大约15岁左右的时候，由于学校、工作和其他活动的压力，这些男性自愿开始减少夜间睡眠时间。

At about age 15 or so, the men voluntarily began cutting down their nightly sleep time because of pressures from school, work, and other activities.

youdao

So, if it's a four-year bond, it would trade at about $90, 6% so it would be yielding 6%.

所以，如果这是四年期的债券，那么它可能在大约90美元左右进行交易，因此它的收益率大约在。

耶鲁公开课 - 金融市场课程节选

until about three o'clock or so. And then we kind of slowdown of course,

会持续到大约3点钟左右。然后会稍微冷清一会儿，

什么样的客人都有 - SpeakingMax英语口语达人

Because even in the Clinton Administration, around 1997, after we refused to vote for the International Criminal Court.

因为即使在克林顿执政期间，大约在1997年左右，在我们拒绝,给国际刑事法庭投票之后。

普林斯顿公开课 - 国际座谈会课程节选