metahemoglobin

例句：

1. 1. The patient's condition improved significantly after the treatment.
   治疗后，患者的病情显著改善。
2. 2.The researcher found that metahemoglobin plays a crucial role in oxygen transport.
   研究者发现高铁血红蛋白在氧气运输中起着关键作用。
3. 3.During exercise, the body produces more metahemoglobin to meet the increased demand for oxygen.
   运动时，身体会产生更多高铁血红蛋白以满足对氧气需求的增加。