rock-hard的例句（rock-hard在句子中的用法）

• Thermodynamics is a hard course to teach. 热力学是很难教的一门课。
• My right toe struck against a submerged rock... 我的右脚趾踢到水中的一块石头上了。
• I've worked hard for what I have and I don't want it taken away by some slimy business partner. 我辛辛苦苦才挣到了这一切，我不希望它们被某个卑鄙的生意伙伴夺走。
• The underside of the rock was covered with seaweed. 岩石的下面布满了海草.
• Renunciation of pleasure has always been very hard to man. 摒弃快乐对人来说总是不易做到的.
• Every time we talk about the hard pioneering days, we have so much to say that we can't get it all out. 大家一提起那艰苦创业的日子, 总有说不完的话.
• I am very much interested in the mural and rock paintings. 我对壁画和岩画非常有兴趣.
• Morale in the armed forces was at rock bottom. 军队的士气极度低迷。
• Her throat constricted and she swallowed hard. 她喉咙发紧，使劲地咽了一下唾沫。
• It was hard to visualize how it could have been done. 很难想象这是如何办到的。
• He tried hard to vindicate his honor. 他拼命维护自己的名誉.
• He tried hard to be urbane. 他极力作出彬彬有礼的神态.
• She is very tenacious and will work hard and long to achieve objectives. 她是个锲而不舍的人，为了达到目标愿意长期苦干。
• It was hard to return to mundane matters after such excitement. 经验过这种紧张的情形,很难再回来做例行的事务.
• Many slopes are rock fields with sparse vegetation. 许多山坡都是石头地，植被稀疏。
• He has the virtues of thrift and hard work. 他具备节俭和勤奋的美德.
• If the oxide film is hard, sliding occurs on the outside thereof. 如果氧化膜较硬, 则滑动在它们的外面发生.
• Poverty and unemployment are frustratingly hard to tackle. 贫穷和失业是难以解决的问题，这常常让人泄气。
• For an evening stroll the beach at Dieppe is hard to beat. 傍晚散步去迪耶普的海滩简直是不二之选。
• The solidarity among China's various nationalities is as firm as a rock. 中国各族人民之间的团结坚如磐石.