unknown.的例句（unknown.在句子中的用法）

• ...the unknown interior of South America... 南美洲不为人知的腹地
• Exactly which bacteria cause the infection is still unknown. 到底是什么细菌引起的感染还不清楚。
• My husband, for some unknown reason, suggested that I loved my birds more than him: as if I would... 我丈夫,莫名其妙地,暗示我爱鸟甚于爱他：仿佛我真如此似的。
• A previously unknown extremist group has said it carried out Friday's bomb attack. 一个先前不为人知的极端组织声称实施了星期五的炸弹袭击。
• ...the risks attendant on the exploration of the unknown. 探索未知所带来的危险
• It is not unknown for valuable display items to go, ahem, missing. 贵重的展品，呃哼，丢失的话，会众人皆知。