80 % of all disease in the world is caused by bad water supply: for millions of people, the perfect Christmas present would be a tap in the village square which would give pure, clean, water.的翻译：什么意思？中文翻译英文，英文翻译中文，怎么说？

80%所有疾病在世界是由坏给水造成的：为成千上万人，完善的圣诞节礼物是轻拍在将给纯净，清洗，浇灌的村庄正方形。