of the first water
非常出色或優秀的;無與倫比的
書面·形容品質極佳或一流
英文釋義
of the finest quality or highest degree; excellent or outstanding
例句
That diamond is of the first water, absolutely flawless.
典故來源
源自寶石鑒定,鉆石按凈度分級,“第一水”指最高品質,后泛指頂級。