手早い答え
resolver は問題を解決し、decidir は行動方針を決めます。
確実な見分け方は、英語から訳す前に、その単語の働きを見きわめることです。
それぞれの単語の働き
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.
選び方
- 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.
例文
Precisamos resolver este problema.
We need to solve this problem.
Decidi aceitar o trabalho.
I decided to accept the job.
よくある落とし穴
Resolver can also mean decide in Brazilian speech, especially before an infinitive. The idea of solving remains its clearest core.
文脈の中で練習する
自分の実生活から文を一つ選び、二回書いてみましょう。一度はresolverで、もう一度はdecidirで。どちらも成り立ちそうなら、意味の違いを言葉にしてみましょう。