tumours of fish

例句：

1. 1.The fisherman found a tumour on the fish that he had caught earlier.
   渔民发现他早些时候捕获的鱼上有一个肿瘤。
2. 2.The sarcoma of fish is rare but can be deadly if left untreated.
   鱼的肉瘤很少见，但如果不治疗可能会致命。
3. 3. The tumour was removed surgically and the patient made a full recovery.
   肿瘤被手术切除，病人完全康复了。