But Michael O'Donnell says the number of serious bird strike incidents has remained at or below two hundred each year.

VOA: special.2009.04.01

You start with O double minus, so that is oxygen plus two electrons.

你从氧二负离子，也就是氯元素带2个负电子。

麻省理工公开课 - 固态化学导论课程节选

So we have like, I'm course 2. And my classes are, you know, two double o one (2001)

比如说，我的专业是课程2，我的课是001（2001），

社团小组信息 - SpeakingMax英语口语达人

ALLEN: " Well,at two o'clock, our billing changes." SECRETARY: "Well, what kind of an act do you do?"

VOA: special.2009.03.09

and we don't all party until two o'clock in the morning, you know, in the night clubs.

我们也不都是在夜店里开派对到凌晨两点。

好莱坞的真面目 - SpeakingMax英语口语达人

The W.H.O.offices for the Americas and the Western Pacific reported two out of three of those cases.

VOA: special.2009.11.24

Okay, which one is that? Seven o one three nine two four nine (70139249), what's...

我也一脸茫然，他们说的数字代表什么？70139249，什么意思？

社团小组信息 - SpeakingMax英语口语达人

"By two thousand and twenty, C.O.P.D.will likely be the third leading cause of death across the world."

VOA: special.2009.06.23

and two double o three (2003), two six fifty (2650).

03 （2003）和650（2650）。

社团小组信息 - SpeakingMax英语口语达人

At current growth rates, the W.H.O.expects the number to reach twenty million by two thousand fifteen.

VOA: special.2009.07.15

The W.H.O.says two hundred forty-seven million people became infected with malaria in two thousand six.

VOA: special.2009.05.26

Central Standard Time, two o'clock Eastern Standard Time, some thirty-eight minutes ago."

VOA: special.2009.08.16

Still,the W.H.O.says there are two major barriers.

VOA: special.2010.04.13

The W.H.O.says since 1988, more than two billion children around the world have been immunized against polio.

VOA: standard.2010.08.02