Permanent: to be fixed or unchanging, the opposite of temporary.
永久的（permanent）：固定不变的，是临时的（temporary）反义词。
He plans to stay there permanently.
他计划永久住在那里。
He has decided to become a permanent resident of China.
他已决定成为中国的永久居民。
Temporary: only lasting for a short time, the opposite of permanent.
临时的（temporary）：只持续很短的时间，是永久的（permanent）反义词。
We can only offer him a temporary position in the company.
我们公司只能提供给他一个临时职位。
This isn't the kind of job he wants, but it's okay as something temporary, until he can find something better.
这不是他想要的工作，但在他找到更好的工作之前，暂时做这份工作也还可以。
Definite: well defined, precise, certain, unchanging.
确定的（definite）：明确的，精确的，肯定的，不变的。
We can't begin the project until you give us a more definite schedule.
除非你给我们一个更确切的时间表，否则我们无法开始这项计划。
We can't give you a definite answer until we get more information.
我们无法给你一个肯定的答复，除非我们有更多的信息。
Obvious: easy to see, stands out.
明显的（obvious）：容易看到，突出。
Of the job candidates we interviewed, he was the obvious choice.
在我们面试的求职者中，他表现突出。
It's obvious that he can't afford to buy that house.
很明显，他买不起那所房子。
Trivial: of little or no importance, insignificant.
细微的（trivial）：不重要；微不足道。
It's a trivial detail, so there's no need to worry about it.
这是一个琐碎的细节，所以没有必要担心。
Those problems are not trivial, so we need to find a solution.
这些问题都不是小事，所以我们需要找到解决办法。
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