英语语法分析

Metastases are the major cause of death from cancer.

转移是癌症致死的主要原因。

Virtually all bone metastases are from carcinomas.

事实上所有骨的转移性病变都是癌。

Objective To explore the diagnostic value of NSE in the serum of patients with brain metastases.

目的监测血清nse的动态变化对脑转移瘤的诊断及预后的临床意义。