mineral substance

• 矿物质

mineral substance的用法和样例：

例句

1. He didn't know the make-up of the mineral.
   他不知道这种矿物质的构成。
2. Calcium is a mineral found in bones that helps keep them strong.
   钙是存于骨骼中并帮助骨骼维持坚固的一种矿物质。