Just as a keystone holds together a stone arch, Pennsylvania was seen as holding together the young American republic.

VOA: special.2009.08.23

I am especially concerned about attendence, So if you have arch-practice these Tuesday afternoons and can't be here every week, you shouldn't take this course.

我很在意考勤，所以，如果周二下午,你有实践活动课,不能每周都出勤的话，建议你不要选这门课。

麻省理工公开课 - 电影哲学课程节选

That is a maximum If you are sharing your time and energy during this period on Tuesday afternoons, or the arch-field don't work so think carefully about that.

让大家充分发挥自己的能力,如果每周二下午这段时间,你都有时间，精力也很充沛，就可以来上这门课，不过这样你就没时间参加实践活动了,所以请仔细考虑吧。

麻省理工公开课 - 电影哲学课程节选

Later a transport system was added to permit people to visit an observation area inside the top of the arch.

VOA: special.2009.03.04

I think a lot of us, we do what we can in this lifetime, hoping that we're are part of a long trajectory of a moral arch toward justice What would like to see in America in 20 years?

我认为我们之中很多人在一生中会竭力奋斗，希望我们能够沿着道德，正义的,的轨迹发展,您如何构想美国20年后的情景呢？

普林斯顿公开课 - 人性课程节选

The Gateway Arch in Saint Louis,Missouri is the tallest freestanding monument in the nation.

VOA: special.2009.03.04

..I have kept hidden in the instep arch Of an old cedar at the waterside A broken drinking goblet like the Grail Under a spell so the wrong ones can't find it, So can't get saved as Saint Mark says they mustn't.

我还保存着一只坏了的高脚酒杯,埋在水边的一棵老树底下,像受了符咒的圣杯,使坏人找不到，如圣马可所说：他们因此不能得救。

耶鲁公开课 - 现代诗歌课程节选

It is the largest single-span concrete arch bridge in the Western Hemisphere.

VOA: special.2010.10.27

Below,the arch is exactly as wide as it is tall.

VOA: special.2009.03.04

Experts say it could be the world's largest free-standing arch.

VOA: special.2009.04.15

The Gateway Arch rises above the Mississippi River.

VOA: special.2009.03.04

the Gateway Arch in Saint Louis,Missouri;

VOA: special.2010.07.30

Earlier this year, Tehran's arch-enemy Israel test fired its own Arrow 2 missile in a simulation of stopping the Shahab-3.

VOA: standard.2009.09.28

The arch has a cable car that takes visitors to the top for breathtaking views of the city and the ocean.

VOA: standard.2010.02.10

Its arch, reaching 106 meters into the sky, recalls the national flag and has changed the city's skyline.

VOA: standard.2010.06.02

Its soaring steel arch, rising more than 100 meters into the air, has changed the city skyline.

VOA: standard.2010.02.10

The school I went tohad an arch just like that. Was your school here in Phoenix?

VOA: standard.other

But in his conciliatory mood Saturday, Mr.Ravalomanana suggested he would not object to a constitutional change that would allow his arch-rival to seek the presidency.

VOA: standard.2009.11.08

We will win the World Cup." The Ghana team bus paraded from the southeastern township of Soweto to the northern suburb of Melrose Arch, and the team later met former President Nelson Mandela at his home.

VOA: standard.2010.07.05