快速答案
resolver 表示解决问题；decidir 表示选择行动方案。
可靠的方法是先判断这个词在句子里的功能，再翻译。
每个词的作用
resolver
to solve or resolve
Use resolver for finding an answer to a problem or settling a difficult matter.
decidir
to decide
Use decidir for choosing between possibilities or reaching a judgment.
如何选择
- resolver: Choose resolver if the sentence points to finding an answer to a problem or settling a difficult matter.
- decidir: Choose decidir if the sentence points to choosing between possibilities or reaching a judgment.
例句
Precisamos resolver este problema.
We need to solve this problem.
Decidi aceitar o trabalho.
I decided to accept the job.
常见误区
Resolver can also mean decide in Brazilian speech, especially before an infinitive. The idea of solving remains its clearest core.
放到语境中练习
从你的真实生活中选一个句子，写两遍：一次用 resolver，一次用 decidir。如果两个版本都可以，说明意思怎样变化。