快速答案
trazer 表示把某物带来；buscar 包括去寻找或接取它的过程。
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
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.
如何选择
- 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.
例句
Traga os documentos amanhã.
Bring the documents tomorrow.
Vou buscar as crianças na escola.
I am going to pick up the children at school.
常见误区
If you must go somewhere first, buscar is often the useful verb. If the focus is what comes here, use trazer.
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 trazer，一次用 buscar。如果两个版本都可以，说明意思怎样变化。