The tissue and cartilage of a nose are too soft to fossilize.
鼻部的组织和软骨结构太软，无法形成化石。
Tissue that is removed during the operation is checked for signs of malignancy.
手术过程中切除的组织用于诊断疾病是否为恶性。
Once gangrene has developed, the tissue is dead, and the only hope is to contain the damage.
一旦出现坏疽，组织就会坏死，那么惟一的希望就是抑制其损害。