高二英语人教修订版unit11-unit 20 useful words and expressions

1.significant adj.意义重大的，重要的，有意义的

a significant date 一个重要的日期

It is a significant change in the system.

这是制度上的重大改变。

The Olympic Games is a significant event for the country.

举办奥运会是对该国具有重大意义的事件。

Penicillin was an extremely significant medical discovery.

青霉素是一项极其重要的医学发现。

He gave her a significant look.

他意味深长地看了她一眼。

be significant of… 意味着，表示……