不为人知用英语怎么说？

不为人知

例句

• Down deep in that ugly heap Marie Curie felt sure that her new element lay hidden. 就在那一堆丑陋难看的东西中,玛丽·居里夫人深信她的新元素蕴藏其中,不为人知。
• Bob Marley and The Wailers remained virtually unknown elsewhere. 但是在其他地方仍然不为人知.
• Unresolved or unacknowledged fears can trigger sleepwalking. 残留在心里的或不为人知的恐惧都可能引发梦游。
• We print a selection of previously unseen photos from the Spanish rider's early years. 我们选了这位西班牙骑手早年一些不为人知的照片刊登出来。
• ...the secretive world of spying. 不为人知的间谍界
• Owen died an unknown provincial. 欧文死的时候是一个不为人知的外乡人。
• Some of us have habits few people know about and we keep it this way... 我们中的一些人有些不为人知的习惯，我们也不想改变这一状况。
• The condition is practically unknown outside psychiatry clinics. 除了医院的精神病科外，这种病几乎不为人知。
• He wrote about the intimate details of his family life... 他写到了关于他家庭生活的一些不为人知的细节。
• ...the unknown interior of South America... 南美洲不为人知的腹地