“In addition, gravid females need more calcium, which is used to build the shells of the eggs.
“In addition, gravid females need more calcium, which is used to build the shells of the eggs.
“怀孕的雌性需要更多的钙质，以便能用于蛋壳的形成。
“In addition, gravid females need more calcium, which is used to build the shells of the eggs.
“怀孕的雌性需要更多的钙质，以便能用于蛋壳的形成。