trypan red

例句：

1. 1.Trypan red is a dye that can be used to stain blood samples.
   锥虫红是一种染料，可以用来染色血样。
2. 2.The doctor used trypan red to detect the presence of parasites in the patient's blood.
   医生使用锥虫红来检测病人血液中的寄生虫。
3. 3. Trypan red was used as a diagnostic tool for malaria detection.
   锥虫红被用作诊断工具，用于疟疾的检测。