A discover of great moment

• 重要的发现

A discover of great moment的用法和样例：

例句

1. He was on the threshold of an important discovery.
   他即将有一个重要的发现。
2. On making his discovery, the astronomer had presented it to the International Astronomical Congress, in a great demonstration.
   当时他曾经在一次国际天文学家代表大会上对他的发现作了重要的论证。