用英文对以下摘要提几个问题：AbstractAims Radiofrequency ablation RFA is clinically adopted to destroy hepatocellular carcinoma but is often incapable of completely ablating large tumors and those with multiple meta

What is the aim of this study?
What are the limitations of radiofrequency ablation (RFA) in treating hepatocellular carcinoma?
What is the role of vascular embolization in enhancing local therapeutic efficacy?
Why do most patients not benefit from the combination of RFA and vascular embolization?
How does anaerobic glycolysis relate to immunosuppression?
What is the proposed solution to induce robust antitumor immune responses?
What is the magnetic vascular embolic agent and how is it constructed?
How does the Thrombin-ZnTA-Fe3O4-PFP embolic agent enhance the efficacy of RFA?
What is the mechanism by which Zn2+ inhibits lactic acid production?
How does the combination of Thrombin-ZnTA-Fe3O4-PFP with anti-programmed cell death protein-1 antibody (aPD-1) enhance antitumor response