Calcium is a soft white chemical element which is found in bones and teeth, and also in limestone, chalk, and marble. 钙
noun [物质名词] （化学元素）钙
Calcium is found most abundantly in milk. 奶含钙最丰富。
calc(石头) + ium → 像石头一样硬 → 钙
- 网友用 “Calcium” 造句精选
- All the original calcium had dissolved away. 所有原始钙都被破坏了。
- Calcium may aid in the prevention of colon cancer. 钙可能有助于预防结肠癌。