adj.单独的，独自的，孤零零的，单亲的

She is a lone traveler, always seeking adventure on her own.
她是一个孤独的旅行者，总是独自去寻找冒险。
In the vast wilderness, he felt completely alone.
在广袤的荒野中，他感到无比孤独。
The soldier was left alone to face the enemy after his comrades retreated.
在战友撤退后，他孤身一人面对敌人。
He likes to spend his weekends in solitude, reading books and listening to music.
他喜欢在周末独处，阅读书籍，听音乐。
The old man lived in a remote cabin, leading a life of seclusion and loneliness.
老人独自住在偏远的小木屋里，过着孤独的生活。
After the divorce, she became a single parent, raising her children alone.
离婚后，她成为单亲妈妈，独自抚养孩子。
The astronaut's journey into space was a lonely endeavor, but also a moment of great accomplishment.
宇航员的太空之旅虽然孤独，但也是一次伟大的成就。
The detective solved the case by himself, without any help from his colleagues.
侦探独自解决了这个案件，没有同事的帮助。
The loneliest post office in the world is located on a remote Antarctic island.
世界上最孤独的邮局坐落在南极的一个偏远小岛上。
In her art, she often explores the theme of loneliness and human connection.
在她的艺术作品中，她常常探讨孤独和人类联系的主题。