A drug that constricts the blood vessels.

收缩血管的药

Red wine can help to dilate blood vessels.

红葡萄酒有助于扩张血管。

The blood vessels may leak fluid, which distorts vision.

血管可能渗漏出液体，扰乱视觉。

Don't use cold water as it shocks the blood vessels into closing up.

不要用冷水，因为冷水会刺激血管，使之闭合。

The surface of the brain is pinky-grey and latticed with tiny blood vessels.

大脑表面为灰红色，上面的微细血管交错成格状。