sad这个英语形容词属于闭音节单音节词,并且末尾只有一个辅音字母,变形规则为:“须先双写这个辅音字母,再加-er和-est”。

比较级： sadder 最高级： saddest

相关介绍

It was sad to see them go.

看着他们离去，真让人难过。

You'd have to be sad to wear a shirt like that.

你穿着那样的衬衣显得老气。

I was very sad indeed to hear of your father's death.

听到令尊大人去世，我感到非常难过。