“倔强地”用英语怎么说？

那老人倔强地不肯脱离工作岗位,不愿意退休.The old man held onto his job stubbornly and would not retire.他又倔强地坐了下来.He sat down again, restively.昨天你倔强地坚持着愚蠢的议论.You stood a foolish argument yesterday....