“金刚石”造句

在工业上，金刚石可以用作工具表面坚固、耐腐蚀的覆盖层。
In industry, diamond can form a tough, non-corrosive coating for tools.

金刚石在阳光下放出五颜六色的光芒.
The diamond shone with every hue under the sun.

珠宝商宣称这金刚石是真的.
The jeweller pronounced the diamond to be genuine.