in a happy and positive way

She walked down the road, whistling cheerfully. 她走在路上，欢快地吹着口哨。

"Hello, Mrs Morris!" he exclaimed cheerfully. "你好，莫里斯夫人！"他兴高采烈地喊道。

in a way that is bright and pleasant and makes you feel positive and happy

The classrooms were cheerfully decorated with children's artwork. 教室用孩子们的艺术作品装饰得格外欢快。

The playroom is cheerfully bright and sunny. 游戏室明亮、充满阳光，令人赏心悦目。

without worrying or feeling sad or sorry about something

By the end of the evening I could cheerfully have punched him. 到晚上结束时，我其实很想揍他。

They cheerfully admit that their research may have little practical value. 他们爽快地承认自己的研究可能没有什么实用价值。