jagged

a.边缘不整齐的，参差不齐的

Jack Frost, Jack tar (also tar), jack-in-office, jack-in-the-box, jack-knife, jack-o-lantern, jack-rabbit, jackal, jackanapes, jackass, jackboot, jackdaw, jacket, jackpot, Jacobean, Jacobite, Jacuzzi, jade, jaded, jag, jaguar, jail, jalopy, jam, jam session, jam-packed, jamb, jamboree, jammy, Jan, jangle, janitor, January, japan, Japanese, jape, japonica, jar, jargon, jasmine,