回上一层第叁部 第一课 --- 请重复跟读，直到可以於声音档的留空之间唸完整句為止；熟练之后您必将可以 "脱口而出" 地说出标準的美式英语
- burst into laughter
- When somebody farted, all the children burst into laughter.
- burst into tears
- Katie burst into tears when she saw her best friend get hurt from the accident.
- burst out crying
- Joshua burst out crying like a child.
- burst out laughing
- Karen burst out laughing for no apparent reason.
- Every time that Kimberly thought about her childhood she burst out laughing.
