she is good
Aun así, ella es buena para los idiomas.
Even so, she's good with languages.
Ella es buena para hablar en inglés, no lo es menos que su hermano.
She is good at speaking English, no less so than her brother.
She's good at skiing.
Ella es buena para jugar tenis.
She's good at playing tennis.
She is a good student.
She is a good kisser.
¿Sabías que ella es buena preparando café?
Did you know she’s good at making coffee?
Ella es buena, Teniente, debería darle una oportunidad.
She's good, Lieutenant, you should give her a chance.
Ella es buena mientras la tengas contenta.
She's good as long as you keep her happy.