adj.漫不经心的，快乐的，无忧无虑的，不在意的

She faced the challenges of life with a blithe spirit, never allowing difficulties to dim her joy.
她以无忧无虑的态度面对生活中的挑战，从不让困难减弱她的快乐。
The blithe child skipped through the meadow, chasing butterflies without a care in the world.
那个快乐天真的孩子在草地上蹦蹦跳跳地追着蝴蝶，对世界上的烦恼毫不在意。
His blithe disregard for the rules often landed him in trouble with authority figures.
他对规则满不在乎的轻松态度常常使他与权威人物发生冲突。
The blithe melody of the song lifted everyone's spirits, making the room feel lighter and happier.
歌曲中欢快的旋律让大家的心情都为之一振，使得整个房间都充满了更轻松愉快的气氛。
She entered the party with a blithe smile, radiating an infectious energy that drew people to her.
她带着无忧无虑的微笑走进派对，散发出一种感染人的活力，吸引人们向她靠拢。
Despite the looming deadline, he approached his work with a blithe attitude, believing everything would somehow work out.
尽管截止日期迫在眉睫，他还是以一种轻松无忧的态度对待工作，相信一切终将顺利解决。
The movie portrayed青春 as a time of blithe exploration and self-discovery, where every day was an adventure.
电影描绘了青春是一个无忧无虑探索和自我发现的时期，每一天都充满了冒险。
Her blithe comments about the serious issue showed a lack of understanding and sensitivity.
她对这个严肃问题所发表的轻松评论，显示出缺乏理解和敏感性。
The blithe traveler wandered the streets of the foreign city, delighting in every new sight and sound.
那位无忧无虑的旅行者漫步在外国城市的街道上，对每一个新景象和声音都感到欣喜。
Their blithe optimism in the face of adversity was both admirable and a little perplexing to those around them.
他们在逆境中表现出的乐观无忧既令人钦佩，也令周围的人稍感困惑。