刚刚

刚刚

"刚刚" means "just now" or "a moment ago."

In this sentence, '刚刚' describes the time of the call being very recent.

刚刚他给我打了一个电话。

He just gave me a call.

In this sentence, '刚刚' indicates a recent completion of the action of eating dinner.

我刚刚吃完晚饭。

I just finished dinner.

Here, '刚刚' signifies the recent commencement of the event, the meeting.

会议刚刚开始，请大家注意不要迟到。

The meeting just started, please be careful not to be late.