毛细管现象

例句：

1. 1. The water flows through the tiny capillaries in the skin.
   水通过皮肤上的微小毛细管流动。
2. 2. Capillaries are responsible for transporting nutrients to cells.
   毛细管负责将营养物质输送到细胞中。
3. 3. The doctor explained that capillaries play a crucial role in blood circulation.
   医生解释说，毛细管在血液循环中起着至关重要的作用。