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.
醫生解釋說,毛細血管在向細胞輸送氧氣方面發揮著至關重要的作用。