1.

1. The professor was favorably impressed by the aptness to learn on the part of his students.
    那位教授对学生们善于学习的能力留下良好的印象。

1. 倾向：aptly 适当地 | aptness 倾向 | aptotic 固定的

2. aptness的翻译

2. 倾向, 适合性, 才能：aptly || 适当地, 适宜地 | aptness || 倾向, 适合性, 才能 | aptotic || 固定的, 无变化的

1. appropriateness for the occasion

    e.g. the phrase had considerable aptness

    Synonym: appositeness

2. a disposition to behave in a certain way

    e.g. the aptness of iron to rust
           the propensity of disease to spread

    Synonym: propensity