Public health developed continuously.

英 美
  • 卫生事业不断发展。
  • continuously adv.不断地;连续地
  • developed adj.发达的;成熟的动词develop的过去式和过去分词.
  • health n.健康;医疗保健
  • public adj.公众的;公共的;公开的n.民众;公众;大众