痴笑

fā zuò xìng chī xiào de zhǔ yào zhèng zhuàng jiù shì wú fǎ kòng zhì de dà xiào

发作性痴笑的主要症状就是无法控制地大笑。

The main symptom of a gelastic seizure is uncontrolled laughter.

shì nǚ dī tóu chī xiào

侍女低头痴笑。

The maid lowered her chin and simpered.