. . . "narrow"@en-us . . . . . . . "0"^^ . "0"^^ . . . . "narrow down"@en-us . "200305332"@en-us . . "specialize"@en-us . "00437449-v"^^ . . "specialise"@en-us . "specialize"^^ . . . "become more focus on an area of activity or field of study; \"She specializes in Near Eastern history\""@en-us . . . "200437449"^^ . . . . "200425035"@en-us . .