the quality of being solid, stiff and difficult to bend or break 坚固的;坚硬的;结实的 It will soon be possible to design materials that approach the hardness of diamonds. 很快就有可能设计出接近钻石硬度的材料。
the fact of being full of difficulty and problems, especially because of a lack of money synonym toughness困苦的;艰苦的;艰难的 I started thinking about the hardness and toughness of life. 我开始思考生活的硬度和韧性。
the quality of putting a lot of effort or energy into an activity 努力的;勤劳的 Others may match her mental hardness; nobody will surpass it. 别人可能比得上她的精神硬度;没有人会超过它。
the fact of needing or using a lot of physical strength or mental effort 耗费体力(或脑力)的;辛苦的 These men enjoy the hardness of the work. 这些人喜欢这项艰苦的工作。
the fact of showing no kind feelings or sympathy 硬度: 没有表现出任何同情或同情hardness of heart 硬心肠
the fact of being ready to fight and showing no signs of fear or weakness 准备战斗的;不软弱退缩的 He's honest and forthright, but there is that hardness about him that's needed. 他诚实直率,但他身上有一种需要的坚强。
the fact of being difficult to do, understand or answer 难做的;难懂的;难以回答的 The hardness of the questions varied a lot. 问题的难度变化很大。
the quality in facts of being definitely true and based on evidence that can be proved 硬度: 实际上是真实的质量,并基于可以证明的证据They want to be sure of the hardness of the data. 他们想确定数据的真实性。
the quality in water of containing calcium and other mineral salts that make mixing with soap difficult 硬的(含钙及镁等可溶性盐较多) water hardness 水的硬度