diehard

n. 顽固分子

dictionary, dictum, did, didactic, didactically, diddle, didn't, die, die away, die down, die for, die from, die game, die of, die of illness, die off, die out, die to the world, die-cast, die-hard, dieresis, diesel, diesel-electric, diet, dietary, dieter, dietetic, dietetics, dietician (also dietitian), differ, difference, different, differential, differential calculus, differentiate, differentiated, differentiation, differently, difficult, difficulty,