快速答案
marido 是日常说法；esposo 指同一关系，但更正式或更有感情色彩。
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
marido
husband
Use marido for the ordinary everyday word for a married male partner.
esposo
spouse or husband
Use esposo for a more formal, ceremonial, or affectionate reference to a husband.
如何选择
- marido: Choose marido if the sentence points to the ordinary everyday word for a married male partner.
- esposo: Choose esposo if the sentence points to a more formal, ceremonial, or affectionate reference to a husband.
例句
Meu marido trabalha em casa.
My husband works from home.
A autora agradeceu ao esposo.
The author thanked her husband.
常见误区
The distinction is register, not marital status: esposo does not mean “more officially married” than marido.
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 marido，一次用 esposo。如果两个版本都可以，说明意思怎样变化。