血氧不足

例句：

1. 1. The patient's blood oxygen level was low, indicating a need for immediate medical attention.
   患者的血氧水平低，需要立即医疗关注。
2. 2. During exercise, it is important to ensure adequate oxygen supply to prevent blood oxygen deficiency.
   在运动时，确保充足的氧气供应以防止血氧不足。
3. 3. The child was rushed to the hospital after suffering from a severe case of blood oxygen deficiency.
   这名儿童因严重血氧不足被紧急送往医院。