硬度较低的石头磨光滑了。The softer rock wears away.讲硬度, 金刚钻是独一无二的.With regard to hardness, the diamond is in a class by itself.铅是硬度较低的金属之一.Lead is one of the softer metals....
He programmed his computer to compare all the possible combinations.他给他的计算机编制了一套程序，以比较所有可能的组合。They agreed to work co-operatively to ease tensions wherever possible.他们同意互相配合尽一切努力缓解紧张局势。It was imperative that he act as nat...