名词<化>钙
名词
1. You need calcium in your food to grow strong, healthy bones.
为了骨骼长得坚固和健康，你的食物里需要有钙。
1. 钙
Calcium is a soft white element which is found in bones and teeth, and also in limestone, chalk, and marble.
1. 钙
Calcium is a soft white element which is found in bones and teeth, and also in limestone, chalk, and marble.
