聚螢映雪

lit. to collect fireflies and study by their light (idiom); fig. ambitious student from impoverished background / burning the midnight oil

to congregate / to assemble / to mass / to gather together / to amass / to polymerize

firefly / glow-worm

to reflect (light) / to shine / to project (an image onto a screen etc)

old variant of 映[ying4]

surname Xue

snow / CL:場|场[chang2] / (literary) to wipe away (a humiliation etc)