It reveals a complete expansion history of the universe over billions of years.

它揭示了宇宙几十亿年来的完整膨胀历史。

And there's competition from the Panama Canal, which is due to complete its own expansion next year.

而且还有来自巴拿马运河的竞争，巴拿马运河预计将于明年完成扩建工程。