maternal cell

例句：

1. 1. Maternal cells are responsible for producing breastmilk.
   母细胞负责产生母乳。
2. 2. The studyof maternal cells has led to new insightsinto the development of the fetus.
   对母细胞的研究为胎儿发育提供了新的见解。
3. 3. Maternal cells play a crucialrole in the immune response during pregnancy.
   母细胞在怀孕期间的免疫反应中起着至关重要的作用。