汉译英：

　　Typically, "empty nester" refers to the middle-aged and elderly people whose children have left home. Nowadays, along with the advance of aging of the society, there are more and more empty nesters, which have become a social issue that cannot be ignored. At the same time, it also leads another problem--empty nest syndrome--a psychological disorder the middle-aged and elderly people suffered, which is caused by the absence of their children who move out of home due to work, study, marriage and so on.