houses or flats that are available for people on low incomes to buy or rent at a low price, especially because the government has required house-building companies to offer a certain number of new properties at lower prices The city needs more affordable housing for families on low incomes. 该市需要为低收入家庭提供更多负担得起的住房。 The shortage of affordable housing has caused an increase in the number of homeless people. 经济适用房的短缺导致无家可归者人数增加。