手早い答え
trazer は物を持って来ること、buscar は探しに行く・取りに行く過程を含みます。
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
trazer
to bring
Use trazer for carrying someone or something toward the speaker or reference point.
buscar
to fetch, pick up, or look for
Use buscar for going to collect someone or something, often returning with it.
選び方
- trazer: Choose trazer if the sentence points to carrying someone or something toward the speaker or reference point.
- buscar: Choose buscar if the sentence points to going to collect someone or something, often returning with it.
例文
Traga os documentos amanhã.
Bring the documents tomorrow.
Vou buscar as crianças na escola.
I am going to pick up the children at school.
よくある落とし穴
If you must go somewhere first, buscar is often the useful verb. If the focus is what comes here, use trazer.
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trazerで、もう一度はbuscar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。