rascal的近义词/同义词有：cur, blackguard, bastard, rat, louse, creep, scoundrel, devil, rapscallion, rogue, trickster, cad, SOB, knave, scamp, wretch, imp, little, bugger, minx, bad, devil, boy, puck, dog, rogue, trickster, terro...
gravity的近义词/同义词有：soberness, austerity, solemnity, severity, gloominess, grimness, dourness, dignity, asceticism, force, weight, gravitation, attraction, pull, pressure, weightiness, significance, import, enormity, moment...