出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第205页（197字）
形容说话语音低弱无力，或做事懒散，毫无干劲，例他近来垂头丧气，说话有气无力的，似乎遭受了很大的打击。
He has been much depressed of late and talks in a listless way．It seems he has been deeply hurt．