望尘莫及

lit. to see only the other rider's dust and have no hope of catching up (idiom) / to be far inferior

full moon / to hope / to expect / to visit / to gaze (into the distance) / to look towards / towards

15th day of month (lunar calendar) / old variant of 望[wang4]

dust / dirt / earth

surname Mo

do not / there is none who

and / to reach / up to / in time for