1. 永久的；永恒的
Something that is permanent lasts for ever.
permanent
e.g. Heavy drinking can cause permanent damage to the brain...
酗酒能造成永久性大脑损伤。
e.g. ...a permanent solution to the problem...
该问题一劳永逸的解决办法
形容词永久性；一直；坚持；不变的名词恒齿；永久齿；电烫发；积和式网络永久的；持久的；固定的