In finding the essence of the story there was the process of his challenging me.
可以说寻找这部小说真谛的过程就是他不断挑战我的过程。
How to describe the brittle failure process for geomaterials is a challenging problem.
对岩土材料的脆性破坏过程进行正确描述是很困难的。
How to describe the brittle failure process for geomaterials is a challenging problem.
对岩土材料的脆性破坏过程进行正确描述是很困难的。
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