例句與造句

1. The next lymph sac to appear is the unpaired retroperitoneal lymph sac at the root of the mesentery of the intestine.
2. Small intestinal volvulus often occurs secondary to another disease process in adult horses, where small intestinal obstruction causes distention and then rotation around the root of the mesentery.
3. It's difficult to find root of the mesentery in a sentence. 用root of the mesentery造句挺難的