相关单词同义词difficult, severe, fierce, tight, violent, closely, heavily, strong, 近义词adj. fierce, forceful, heavy, intense, powerful, severe, strong, violent, difficult, exacting, tough, troublesome, complex, involved, diligent, earnest, enterprising, vigorous, disagreeable, distressing, harsh, oppressive, rough, brutal, stern, strict adv. furiously, intently, steadily, heavily, powerfully, strongly反义词adj.easy, flexible, light, mild, weak, simpleadv.effortlessly, lightly, mildly, softly, weakly临近词hardcore, harbour, Harde, Hardt, Harda, Hardi, hards, Hardel, Hardey, Hardek, Hardee, Hardoy相似词harassment, harbinger, harbour, harbour master, hard at it idiom, hard body, hard border, hard by, 返回 hard