-
血管的扩张和收缩对血液的正常的流动是必需的。
Expansion and contraction of blood vessels of normal blood flow is essential.
youdao
-
运动会使大脑表层的血管扩张。
Exercise dilates blood vessels on the surface of the brain.
youdao
-
运动会使大脑表层的血管扩张。
Exercise dilates blood vessels on the surface of the brain.
youdao