laugh的过去式

laughed就是过去式。
We have laughed a lot.

我们欢笑不断。

Melissa laughed unpleasantly.

梅利莎令人不愉快地笑着。

'That's unreal!' she laughed.

“这怎么可能！”她笑了起来。

'Don't be so wet,' she laughed.

“别这么窝囊。”她笑道。

They laughed together raucously.

他们一起大声笑起来，声音很刺耳。