英语语法分析

Columbus's signal accomplishment was to reknit the seams of Pangaea.

哥伦布最非凡的成就在于他重新弥合了原始大陆的缝隙。

Columbus's signal accomplishment was, in the phrase of the historian Alfred W. Crosby, to reknit the seams of Pangaea.

按照历史学家阿尔弗雷德·W·克罗斯比的说法就是，哥伦布最非凡的成就在于将原始大陆的缝隙重新弥合。