In New York, a 9-11 memorial and museum now sit in the original location of the World Trade Center towers.

在纽约，9-11纪念馆和博物馆现在就坐落在世贸中心大楼的原址。

We had a live camera up on what looked like a smoking flash across one of the World Trade Center towers.

我们在世贸大厦的一座塔楼上看到了一个冒烟的闪光灯。

Two of the planes crashed into (or hit) the World Trade Center Towers, two very tall buildings, in New York City.

其中两架飞机撞上了世界贸易中心大厦，纽约的两座摩天大楼。

More than 400 emergency workers including firefighters, police officers and medical technicians gave their lives trying to rescue people in the doomed World Trade Center towers.

包括消防队员、警察和医疗技术人员在内的400多名紧急救援人员在试图抢救即将倒塌的世贸中心大楼里的人们时献出了生命。

Two crashed into the World Trade Center towers in New York City.

两架飞机撞上了纽约市的世界贸易中心大楼。

Two planes were flown into the World Trade Center towers in New York City and both buildings collapsed soon afterward.

两架飞机撞上了纽约市的世界贸易中心大楼，随后两座大楼都倒塌了。

The World Trade Center towers were designed for the state of the art aircraft of its day, which was a Boeing 707.

世界贸易中心塔楼专为当时最先进的飞机而设计，即波音 707。

This challenge was overcome in designs for New York's original World Trade Center towers — structures that became the tallest buildings in the world when they were first constructed in the early 1970s.

这一挑战在纽约最初的世界贸易中心塔楼的设计中被克服了——这两座塔楼在 20 世纪 70 年代初首次建造时就成为了世界上最高的建筑。

Foreign terrorists crashed four passenger airplanes into the two World Trade Center towers in New York, the Pentagon in Washington, D.C. and a rural field in Pennsylvania.

外国恐怖分子将四架客机撞向纽约世贸中心的两座大楼、华盛顿特区的五角大楼和宾夕法尼亚州的一片农田。