独一无二
[词典] the one and only; in a class by itself [oneself]; matchless; the only one of its kind; in a class by oneself;
[例句]讲硬度，金刚钻是独一无二的独一无二的英文缩写。
With regard to hardness, the diamond is in a class by itself.
独一无二
[词典] the one and only; in a class by itself [oneself]; matchless; the only one of its kind; in a class by oneself;
[例句]讲硬度，金刚钻是独一无二的独一无二的英文缩写。
With regard to hardness, the diamond is in a class by itself.
