血栓

例句：

1. 1. He suffered a stroke and had to undergo surgery to remove the blood clot.
   他因中风接受了手术，以移除血块。
2. 2. The patient was diagnosed with a deep vein thrombosis.
   患者被诊断出患有深静脉血栓。
3. 3.The doctor advised him to take anticoagulants to prevent further clotting.
   医生建议他服用抗凝药物以防止进一步的凝血。