清理排水沟口落叶

提示词

只清理指定排水沟口及允许边缘的落叶杂物，按可见参考恢复格栅表现，格栅位置、沟口和铺地不变，不声称已验证排水畅通。

Clear leaves and debris only from the specified drain opening and permitted edge, restoring the grate from visible references while retaining its position, opening, and paving without claiming verified drainage performance.