病象

例句：

1. 1. The patient's condition is critical, and we need to monitor his vital signs closely.
   病人的状况危急，我们需要密切监测他的体征。
2. 2. The doctor examined the patient's symptoms before prescribing medication.
   医生在开药前先检查了病人的症状。
3. 3. After surgery, the patient showed some improvement in his symptoms.
   手术后，病人的症状有所改善。