他很寂寞用英语怎么说

"He is very lonely" 是用英语表达 "他很寂寞" 的方法。
"Lonely" 是一个形容词，表示 "feeling lonely"，意思是感到孤独。这个词来自中古英语 "loneliche"，有 "solitary" 或 "sad because of being alone" 的意思。
下面是一些用 "lonely" 的例句：
She often feels lonely living by herself. 她经常觉得自己一个人住很寂寞。
He gets lonely when he travels for work and doesn't see his family for a long time. 当他出差工作而很长时间没有看到家人时，他会感到寂寞。
The elderly man was lonely after his wife passed away. 这个老人在他妻子去世后感到很寂寞。