They mark the first day of business for One World Trade Center, the original site of 911 attacks.

他们标志着世界贸易中心, 也就是当年911事件发生的地点，开始商业运行的第一天。

Nearly 3,000 people died when hijacked jetliners crashed into the World Trade Center, the Pentagon and a field in Pennsylvania on September 11,2001.

2001 年 9 月 11 日，被劫持的喷气式客机分别撞向世贸中心、五角大楼和宾夕法尼亚州的一块田地，造成近 3000 人遇难。

At the same time, sunlight brightened an atrium at the new World Trade Center. The building is designed to let a strip of light in at 10: 28 a. m. each September 11. The feature is known as " The Oculus" .

同时，阳光照射在新世贸中心的中庭。该建筑每年9月11日的10: 38会放一缕光进入中庭。该特征被称为" 奥核之眼" 。