qí shǒu sòng cuò lóu shí，mǎ shàng shuō zhèng què lóu hào，dān yuán hé zuì jìn lù xiàn

骑手送错楼时，马上说正确楼号、单元和最近路线。

When the rider delivers to the wrong building, immediately say the correct building number, unit, and nearest route.