1. ADJ Something that is joyful causes happiness and pleasure. 令人喜悅的[正式]

A wedding is a joyful celebration of love. 婚禮是令人喜悅的愛(ài)情慶典。

2. ADJ Someone who is joyful is extremely happy. 非?？鞓?lè)的[正式]

We're a very joyful people; we're very musical people and we love music. 我們是非常快樂(lè)的民族；我們是音樂(lè)之族；我們熱愛(ài)音樂(lè)。

3. joyfullyADV 非常快樂(lè)地

They greeted him joyfully. 他們非?？鞓?lè)地跟他打了招呼。