224. Yale and Harvard have led the way, offering every undergraduate at least one international study or internship opportunity—and providing the financial resources to make it possible.

耶鲁大学和哈佛大学引领了这一潮流，为每位本科生提供至少一次出国学习或实习的机会——并提供资金援助使其得以实现。

本句的主干是Yale and Harvard have led the way。现在分词短语offering...and providing...为句子的伴随状语，破折号起到了递进的作用。

lead the way的意思是“先行，带路”。如：

These scientists are leading the way in space research. 这些科学家在宇宙研究中处于领先地位。

at least的意思是“至少”。如：

We should brush our teeth at least twice a day. 我们每天应该至少刷两次牙。