The discovery of America was a great event这里的of是什么意思什么用法

The discovery of America was a great event这里的of是什么意思什么用法 The discovery of america was an accident. The Internet is a wonderful discovery,__________ of great si a great discovery was make a great discovery in the cure of deadly disease为什么错,正确的 a time of discovery是什么意思? he has made a discovery,_______ of great importance to the p this was the first discovery of a center of motion not appar 2 this was the first discovery of a center of motion not app 100402 this was the first discovery of a center of motion no 100402（zhang）:this was the first discovery of a center of mo The old scientist made another great discovery ,______ of gr