Lǎoshī de yí jù huà ràng quán bān hōngtáng-dàxiào.
One sentence from the teacher made the whole class burst out laughing.
Tips
mistakes
哄 has three pronunciations: hōng (uproar, as here), hǒng (to coax/soothe, as in 哄孩子), and hòng (to deceive). In this idiom it's always first tone hōng.
