Jiàoshì lǐ chuánlái zhènzhèn xiàoshēng.
Bursts of laughter came from the classroom.
Tā de xiàoshēng hěn yǒu gǎnrǎnlì.
Her laughter is very infectious.
Háizimen de xiàoshēng chōngmǎn le zhěnggè yuànzi.
The children's laughter filled the whole courtyard.
