| 1 | This software needs to be carefully tested before use. | |
| 2 | The organizer of the activity has carefully designed every aspect of it. | |
| 3 | This project requires careful planning and sufficient financial support. | |
| 4 | The playwright carefully crafted this drama with vivid characters and a complex plot. | |
| 5 | Autumn is a critical period for garden landscape maintenance that requires careful preservation. |