快速答案
habilidade 是完成具体任务的熟练程度；capacidade 是行动、理解、生产或容纳的更广泛潜力或上限。
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
habilidade
skill or dexterity
Use habilidade for a learned or practiced ability to perform a particular task well.
capacidade
capacity or ability
Use capacidade for the potential, power, competence, or maximum amount to do or contain something.
如何选择
- habilidade: Choose habilidade if the sentence points to a learned or practiced ability to perform a particular task well.
- capacidade: Choose capacidade if the sentence points to the potential, power, competence, or maximum amount to do or contain something.
例句
A vaga exige habilidade de negociação.
The position requires negotiation skills.
O auditório tem capacidade para quinhentas pessoas.
The auditorium has capacity for five hundred people.
常见误区
Practice develops habilidades; a person or system has capacidade. In some professional contexts, both may describe ability from different angles.
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 habilidade，一次用 capacidade。如果两个版本都可以，说明意思怎样变化。