两个都有压力的意思,都可以作名词和动词,stress还有“强调”的意思,pressure作名词意思是大气压,压力（一般所说的压力 和人与人之间相处的压力）,作动词意思是“说服”,例如：If you pressure someone to do something, you try forcefully to persuade them to do it.