Cells, which nuclear stained in yellow brown, were the positive pattern.

细胞核呈黄褐色染色的为阳性细胞。

youdao

He had smoked for so many years that his teeth were permanently stained yellow.

他吸了那么多年烟，牙齿都被永久地熏黄了。

youdao

He had smoked for so many years that his teeth were permanently stained yellow.

他吸了那么多年烟，牙齿都被永久地熏黄了。

youdao