hardieadj.难的；艰苦的；勇敢的adv.努力地；辛苦地；坚硬地hardadj.硬的；困难的；棘手的；坚强的；残酷的；用力的；液态的；严寒的；确凿的adv.努力地；强烈地；严重地；坚定地hard magnetic steel硬磁钢hard-grade billet硬钢坯段hard-earned money辛苦赚来的钱; 辛苦钱hard metal compound硬质合金化合物hard-wood cutting硬枝扦插hard-surface mask表面坚固的掩膜hard-sell tactics强行推销术Hard-branch graft硬枝嫁接hardwired knowledge硬连线知识hard-facing layer堆焊层