Medical experts say the most effective way to prevent the spread of diseases is for people to wash their hands with soap and water. The Word Bank and the United Nations carried out a study to urge hand washing around ...Medical experts say the most effective way to prevent the spread of diseases is for people to wash their hands with soap and water. The Word Bank and the United Nations carried out a study to urge hand washing around the world. They say programmes to increase hand washing展开更多
文摘Medical experts say the most effective way to prevent the spread of diseases is for people to wash their hands with soap and water. The Word Bank and the United Nations carried out a study to urge hand washing around the world. They say programmes to increase hand washing