an adult child who returns home to live with his or her parents after being away for some time（成年子女离家一段时间后回家与父母同住的）还巢儿，回巢族
With the country in tough economic times, more young American adults, over age 18, are returning to the family nest. Some boomerang kids may come and go for years, if not decades.在经济不景气的国家，越来越多的18岁以上的年轻美国成年人重返家庭。一些飞旋镖的孩子可能来来往往甚至要几十年。
Historically, the number of boomerang kids rises when the economy turns sour.从历史上看，当经济转坏时，飞旋镖的孩子人数会增加。
The average boomerang child surveyed was 22 years old and had been away from home an average of two years.接受调查的回旋镖儿童的平均年龄为22岁，平均离家两年。