| 释义 |
ˌcalcium ˈcarbonatenoun [U] (symbol CaCO₃) a white solid that exists naturally as chalk, LIMESTONE (= a type of white stone used in building) and MARBLE (= a type of white stone that can be polished smooth and is used in building and for making statues) 碳酸钙（存在于白垩、灰岩及大理石中） |