permanent
单词辨析：
指长时间持续或永久性存在的。
He has a permanent job.
他有份固定工作。
Is this a permanent change in her writing style?
这是她写作风格的永久改变吗？
指持续很长时间的。
The success of this movie lies in the enduring appeal of Shakespeare's plays.
这部电影的成功在于莎士比亚戏剧经久不衰的魅力。
His enduring hatred for her made it impossible for them to become friends.
他对她持久的仇恨让他们无法成为朋友。
指永远持续下去的，即使在某人逝世之后仍然如此。
His noble character has won him everlasting fame.
他高尚的品格为他赢得了永久的名声。
Do you think everlasting love really exists?
你认为真的有永恒之爱吗？
指一直存在、从不改变或停止的，作此义解时通常作定语；也指工作或职位终身的，作此义解时只作定语。
Can you explain the perpetual snow on that mountaintop?
你知道为什么那座山的山顶常年积雪吗？
When was she elected perpetual president?
她何时当选终身会长的？
相关例句：
It's difficult to find a permanent cure for this disease.
这病很难除根。
The city's rather uncompromising bleakness is a permanent memorial to its dark and mysterious founders.
这座城市毫不妥协的荒凉面貌是对其神秘莫测的创建者的永久纪念。
In albuminous seeds, it remains as a permanent storage organ of the mature seed.
在有胚乳的种子中，它保留作为成熟种子中的永久贮藏器官。
No one knows for certain how many refugees wander the world today, or languish in camps without a permanent place of settlement.
无人清楚如今有多少难民在到处流浪，或有多少人流离失所，在难民营里受苦。
Work began on establishing the cemeteries as permanent memorials to the fallen.
把公墓建成阵亡战士的永久性纪念碑的工作已经开始。
Don't get me wrong, it's interesting work. But it's not permanent
别误会我的意思，这个工作很有意思，可惜不是长期性的。