foramen ischiadicum majus

例句：

1. 1. Theforamen is the opening through whichgases pass from the lungs tothe bloodstream.
   这个孔是气体从肺部到血液的通道。
2. 2. Theforamen ductus arteriosus isresponsible for carrying oxygenated blood fromthe heart to the rest of the body.
   动脉导管负责将氧气丰富的血液从心脏输送到身体其他部位。
3. 3. In somecases, the foramen may beblocked, causing difficulty breathing.
   在某些情况下，孔可能被阻塞，导致呼吸困难。