例句與造句

1. Researchers at Moorfields Eye Hospital had already been using human embryonic stem cells to replace the pigmented lining of the retina in patients with Stargardt's disease.
2. If the coronet skin has any dark patch, the walls show a parallel pigmented line, from the coronet to the ground, showing the wall's growth direction.
3. It's difficult to find pigmented line in a sentence. 用pigmented line造句挺難的