| 1 | It sets the children's wading pool, plastic cement race track, sand pool outdoors. | |
| 2 | We were running on the courts that had sand on it. | |
| 3 | Piano classroom, Sand Pond, Plastic Track and so on. | |
| 4 | We have a big sports field with a plastic cement track and a newly-built gymnasium in our school. | |
| 5 | The inside of the bird nest was a sport field covered with plastic racetracks. The center of the sport field was a green lawn. |