a.

1. 注意的，留意的；傾聽的[（+to）]
   She is attentive to her studies.

   她學習很專心。

2. 殷勤的；體貼的[（+to）]
   She was very attentive to her guests.

   她對客人招待得十分周到。

3. 彬彬有禮的[（+to）]

adj.

1. paying close attention.
2. assiduously attending to the comfort or wishes of others.