单词	后渊--弧后海渊
释义	后渊；弧后海渊backdeep
随便看	backwards compatibility backwards compatible backward search backward-search algorithm backward search for beginning of program backward search for block[sequence]number backward search for block（sequence）number backward search for particular data backward search for program alignment function backward season backward selection model backward sequence backward sequence number backward shift backward shifting backward shift operator backward sight backward signal backward signaling path backward-sloping letter backward somersault backward speed backward spinning backward stagger backward step