| 1 | He closed off his emotional world. | |
| 2 | But the slaughter went unreported in that closed society. | |
| 3 | This ecological park is enclosed to protect the environment for animals and plants. | |
| 4 | He has closed off his emotions and finds it difficult to express himself. | |
| 5 | The room has been closed for a long time, and the air is filled with mold. |