clap的过去式为什么要双写P

因为它是重读闭音节:clapped

Everyone cheered and clapped.

人人都鼓掌欢呼。

The audience cheered and clapped.

观众又是喝彩又是鼓掌。

He clapped his hands for silence.

他拍手要大家安静下来。

The men danced and the women clapped.

男人们跳舞，女人们鼓掌。

Everyone clapped us when we went up to get our prize.

我们上前领奖时，大家都为我们鼓掌。