杰克船长在英语中翻译为 "Captain Jack." 这个词源于世界著名的小说《骷髅岛》中的主角。例句：

"Captain Jack is a fictional character in the novel Treasure Island." (杰克船长是《骷髅岛》小说中的一个虚构人物。)

"Captain Jack is known for his love of adventure and his cunning nature." (杰克船长以他对冒险的热爱和狡诈的本性而闻名。)