Improving drinking water and lavatories

英 美
  • 改水改厕
  • and conj.和;加;接着;那么
  • drinking n.喝;喝酒动词drink的现在分词.
  • improving n.改良;改进动词improve的现在分词形式.
  • lavatories n.盥洗室;厕所
  • water n.水;海域;雨水;海水v.给...浇水;给...供水;加水稀释;充满眼泪;给...水喝