there is but a small group of undergraduates (主句)只有一小部分本科生
for whom pursuing knowedge is the most important thing(介词短语修饰 undergraduates) during their years at harvard (状语)
在哈佛求学的几年中追求知识是他们最重要的事情
翻译:把在哈佛求学的几年中追求知识作为自己最重要的事情的本科生只有一小部分.
there is but a small group of undergraduates (主句)只有一小部分本科生
for whom pursuing knowedge is the most important thing(介词短语修饰 undergraduates) during their years at harvard (状语)
在哈佛求学的几年中追求知识是他们最重要的事情
翻译:把在哈佛求学的几年中追求知识作为自己最重要的事情的本科生只有一小部分.