囊

• Cystic fibrosis is a hereditary disease .
  囊性纤维性病是一种遗传性病。
• The peritoneal cavity is a closed sac .
  腹膜腔是一个封闭的囊腔。
• Sometimes the testis fails to enter the scrotum .
  有时睾丸未能降入阴囊。
• Spermathecal pores are usually intersegmental .
  受精囊孔经常是位于节间。
• Attempts have failed to detect allantoicase .
  试图检测尿囊素酶没有成功。
• Spermathecae and their pores are not always paired .
  受精囊与孔常不成对。
• The capsules of the synovial joints are lax .
  滑液关节的关节囊都是松弛的。
• The testis sacs communicate with the seminal vesicles .
  精巢囊与储精囊相连。
• These stacks of thylakoids are called grana .
  这些成堆的类囊体称为质体基粒。
• The ulcer has perforated into the lesser omental bursa .
  溃疡穿透到小网膜囊。