Collins Chinese Dictionary Plus (3rd edition), 2011:
ability [əˈbɪlɪtɪ]
n
1
[s]
(=capacity) ▶ ability (to do sth) (做某事的)能力 (zuò mǒushì de) nénglì
2
[c/u]
(=talent, skill) 才能 cáinéng [项 xiàng]
- to the best of my ability/abilities
尽(盡)我最大的努力 jìn wǒ zuìdà de nǔlì