VOA慢速英语:Kurds Fight Militants in Syria; Civilians Flee to Turkey

lose – v. to have no longer; to not find; to fail to keep; to be defeated

urge – v. to advise strongly; to make a great effort to get someone to do something

case – n. an incident of disease (“There was only one case of chicken pox at the school.”)

disappear – v. to become unseen; to no longer exist