专家：城市人口增长将加剧住房危机

advancement - n. the act or result of making something better, more successful, etc.; the act of being raised to a higher rank or position

access - n. a way of getting near, at, or to something or someone

resources - n. a supply of something, such as money, that someone has and can use when it is needed

urban - adj. of or relating to cities and the people who live in them

toilet - n. a large bowl attached to a pipe that is used for getting rid of bodily waste and then flushed with water

institution - n. a custom, practice, or law that is accepted and used by many people