Article

1234567
Across
  1. 2. a kind of city which contain green spaces
  2. 3. a situation on the road which make vehicles slow or even stop for some time
  3. 4. a kind of city that use modern technology to operate
  4. 6. the study and knowledge of the practical use of scientific discoveries
  5. 7. a person who live in the city
Down
  1. 1. cameras and smart sensors are kinds of it
  2. 5. a kind of garden that is on the roof of a building