快速答案
esperto 表示机灵、警觉；experto 表示专家，但巴西更常用 especialista 或 perito。
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
esperto
clever, alert, or quick
Use esperto for mental agility, attentiveness, or practical shrewdness.
experto
expert
Use experto for a specialist with deep technical knowledge or skill.
如何选择
- esperto: Choose esperto if the sentence points to mental agility, attentiveness, or practical shrewdness.
- experto: Choose experto if the sentence points to a specialist with deep technical knowledge or skill.
例句
A aluna é esperta e aprende rápido.
The student is bright and learns quickly.
O tribunal ouviu um experto em segurança digital.
The court heard a digital security expert.
常见误区
In Brazil, especialista and perito are often more natural than the less frequent experto, but experto never simply means clever.
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 esperto，一次用 experto。如果两个版本都可以，说明意思怎样变化。