然而，李•博林格，哥伦比亚大学校长，则拒绝收回邀请。

But Lee Bollinger, Columbia's President, refused to withdraw his invitation.

youdao

然而，李•博林格，哥伦比亚大学校长，则拒绝收回邀请。

But Lee Bollinger, Columbia's President, refused to withdraw his invitation.

youdao