快速答案
apresentar 把人或内容呈现给观众；introduzir 把某个元素引入系统、文本或讨论。
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
apresentar
to present, show, or introduce
Use apresentar for introducing people, displaying results, submitting work, or giving a presentation.
introduzir
to introduce or insert
Use introduzir for putting something into a place, system, text, or discussion, or bringing in a new idea.
如何选择
- apresentar: Choose apresentar if the sentence points to introducing people, displaying results, submitting work, or giving a presentation.
- introduzir: Choose introduzir if the sentence points to putting something into a place, system, text, or discussion, or bringing in a new idea.
例句
Vou apresentar a Ana ao diretor.
I am going to introduce Ana to the director.
O relatório introduz um novo conceito.
The report introduces a new concept.
常见误区
For introducing one person to another, apresentar is the natural Brazilian verb. Introduzir sounds physical or conceptual in many contexts.
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 apresentar，一次用 introduzir。如果两个版本都可以，说明意思怎样变化。