capillary
🇺🇸
/ˈkæpəleri/
🇬🇧
/kəˈpɪləri/
The smallest blood vessels in the body that connect arteries and veins.
The doctor explained that the capillaries play a vital role in delivering oxygen to our cells.
医生解释说,毛细血管在向我们的细胞输送氧气方面发挥着至关重要的作用。