年代: the 1970s不明: not clear; unknown的: 4次方是 The fourth power of 2 i ...不明的: b6 adespota; shadow; uncertainty; unknown生存年代不重叠的: allochronic; allochronous病因不明的: agnogenic病原不明的: anetiological; of unknown etiology成因不明的: agnostogenic; aphanogene; cryptogene; cryptogenic; kryptogene动机不明的: unmotivated来源不明的: an anonymous author wrot起因不明的: cryptogenic起源不明的: aphanogene情况不明的: uncharted身分不明的: undisclosed; unidentified生父不明的: fatherless下落不明的: neither present after a battle nor known to have been killed形体不明的: formless行踪不明的: lost姓氏不明的: anonymous-having an unknown or unacknowledged name; we received an anonymous letter原因不明的: agnogenic; cryptogenetic; cryptogenic不明的,无关联的: noncausal国籍不明的人: person of uncertain nationality来路不明的钱: silly money起因不明的病: an obscure malady所有主不明的: unclaimed
