adj.快乐的，欢乐的，愉快的，高兴的

The children's laughter was jocund and carefree, filling the house with joy.
孩子们的笑声欢快无忧，给房子带来了欢乐。
The party was in full swing, with everyone in high spirits, their jocundity contagious.
派对热闹非凡，每个人的欢快情绪都极具感染力。
His jocund nature made him the life of the party, always ready with a joke or a lighthearted comment.
他开朗的性格使他在聚会上总是焦点，总能带来欢笑和轻松的谈话。
The jocund melody of the folk song echoed through the village square, lifting everyone's spirits.
民间歌曲的欢快旋律在村广场回荡，提振了所有人的精神。
Despite the difficult circumstances, she maintained a jocund demeanor, trying to keep everyone's spirits up.
尽管身处困境，她仍保持乐观，尽力鼓舞大家的情绪。
The elderly couple's jocund dance moves surprised everyone at the wedding reception.
这对老夫妇欢快的舞步在婚礼上让大家大吃一惊。
The jocund dog wagged its tail so vigorously that it knocked over a vase.
这只欢快的狗摇尾巴如此用力，竟然打翻了一个花瓶。
In his memoir, the author recalled the jocund days spent on the beach with friends.
在他的回忆录中，作者记述了与朋友们在海滩上度过的欢快时光。
The teacher's jocund teaching style made even the most challenging subjects enjoyable for the students.
老师的欢快教学方式让最困难的课程也变得有趣，学生们都很喜欢。
After a long day at work, it was a relief to be surrounded by the jocund atmosphere of a cozy pub.
工作一天后，置身于温馨小酒吧的欢快氛围中，让人感到放松。