不明: not clear; unknown起因: cause; origin; as a result o ...的: 4次方是 The fourth power of 2 i ...转移: shift; transfer; divert瘤: tumour不明起因的疾病症候群: morbid symptoms of unknown origin转移瘤: metastatic neoplasm; metastatic tumor; secondary growth转移, 转移瘤, 转移灶: metastases肝转移瘤: liver metastasis脊髓转移瘤: metastatic tumor of spinal cord颈部转移瘤: cervical metastatic cancer颅内转移瘤: intracranial metastasis tumour; intracranial metastatic tumor脑转移瘤: metastatic encephaloma微转移瘤: micrometastasis胸膜转移瘤: metastatic tumor of pleura起因不明: start from some unknown cause 起因不明的火灾 a fire of unknown origin起因不明的: cryptogenic起因不明的病: an obscure malady动物起因的演替: therium环境起因的挫折: environmental frustration颅内转移瘤切除术: excision of intracranial metastatic tumor起因不明的火灾: a fire of unknown origin癌的转移: the metastasis of a carcinoma成本的转移: transformation of cost诉讼的转移: transfer of actions