英语语法分析

Sudden anuresis was the main feature of arterial thrombosis, while venous thrombosis was characterized by sudden anuresis and renal graft pain even graft rupture.

动脉血栓形成主要表现为突发的无尿，静脉血栓表现为少尿伴移植肾区胀痛甚至移植肾破裂。