| 1 | We need to repair this house again. | |
| 2 | The system's vulnerabilities must be fixed soon. | |
| 3 | During sleep, the body undergoes important repair and growth. | |
| 4 | Blood vessel generation plays a critical role in wound healing and tissue repair. | |
| 5 | Sleep is an important process for the body to recover and repair, and a lack of sleep can affect physical health. |