一句英语长句，翻译工具都跪了，求高人解答OnDecember1,2012，notlongbeforetheopeningoftheBeijing-GuangzhouHigh-speedRailway,theHarbin-DalianHigh-speedRailway,thefirsthigh-speedlineevertocrosslandthatliesfr

Question

一句英语长句，翻译工具都跪了，求高人解答
On December 1, 2012，not long before the opening of the Beijing-Guangzhou High-speed Railway, the Harbin-Dalian High-speed Railway, the first high-speed line ever to cross land that lies frozen for almost half a year, began operations, which allows passengers to appreciate the view off the coast from Dalian in the morning, and the winter snowscape of frosty Harbin in the afternoon .

其中第二行 ever to 这个结构是什么意思？怎么用？

Answer 1

2012年12月1日，距北京-广州高铁开通不久，哈尔滨-大连的高铁正式开工，这是第一条横跨这片冰雪大陆的快速铁路，而曾经这需要近半年，但现在乘客可以在早晨欣赏大连的海岸景观，而在傍晚欣赏到冰雪之城哈尔滨的动人...