We encountered a number of difficulties in the first week.

我们在第一周遇到了一些困难。

《牛津词典》

The number of attacks on the capital had gone down over the past week.

在过去一周里对首都的袭击次数下降了。

《柯林斯英汉双解大词典》

He has a number of speaking engagements this week.

他这个星期安排了几次演讲。

《牛津词典》

Just last week,the Commerce Department reported an unexpected drop in December in the number of housing starts by builders.

VOA: special.2011.01.24

So this is a thing, Week Number Four, saw very commonly, which was -- this is something we saw commonly and there's a couple of issues here.

所以这是一件事，第四个，一般的分解，那是我们讲解的东西,这里有好几个问题。

哈佛公开课 - 计算机科学课程节选

Well a number of you have spent this past week playing with this particular tool which is a project the course has been working on for some time in an effort to make it easier and more social to actually shop for courses.

在过去的一周里,已经有一部分人开始使用这种特殊的工具了,这门课程一直在致力于这一工具的开发,目的是为了让课程变的更简单,选课更人性化。

哈佛公开课 - 计算机科学课程节选

Mr. McCLINTON: Yeah, and it's number one on Americano this week, number 14 in country albums and 150-something on the Billboard top 200.

NPR: Bluesman Delbert McClinton's 'Cost of Living'

Initial jobless claims dropped to a seasonally adjusted 407, 000 this week, a rather amazing number, as the actual number was 462, 000 (although the week before the actual number was just 409, 000).

FORBES: Good News Means No Recession, But Downturn Lingers On The Margins

Labrinth featuring Emeli Sande are spending a second week at number two with Beneath Your Beautiful.

BBC: Robbie Williams