be along的使用方法

The American medical school is now well along in the second century of its history.

be along 是正处在...的意思吗？along在这是介词吗？in the second century of its history意思是在他的历史的第二个世纪里？

The American medical school is now well along in the second century of its history.

【翻译】这所美国医学院在其历史的第二世纪中，已经进步得非常不错了。

本句谓语动词主要结构是：be along，well 修饰along。等于goes along well，意为“进步得非常不错”。

无论从is along 还是goes along 中，along 都是副词。

in the second century of its history，是时间状语。说明：该学院打造到今天已经进入第二个世纪，就是说100多年了。