It would be a momentous event.

这将是意义重大的大事件。

"This is going to be a pretty momentous event," he said.

他说：“这将是一次颇具历史意义的会议。”

It is a momentous event, something we will tell our children's children about.

像这样重大的事件，日后一定会在我们的儿孙辈间传述。

In my view, this world conference must be the third momentous event of the year.

在我看来，本次世界大会必须成为今年第三项重大事件。

Two weeks ago a momentous event occurred: the beginning of the world's first evacuation of an entire people as a result of manmade global warming.

两星期之前发生了一件重大事件：人为的全球变暖造成恶果，世界上首批居民整体迁移开始了。

After the extensive news coverage of this momentous event, the study of genetic engineering and recombinant DNA was thrown into the public spotlight.

媒体全面报道这一重大事件之后，基因工程和重组DNA的研究成为公众瞩目的焦点。

CCNDFS plays an authoritative role on film production of state momentous movement and historic event, which leads to a lot of most important and philologically valuable documentary films.

中央新闻纪录电影制片厂，在涉及共和国的重大活动、历史事件等方面具有权威的拍摄地位，诞生了大量共和国历史上最重要、最具有文献价值的新闻纪录片。