jam

n.果酱；堵塞 vt.压紧；突然用力推

jack-knife, jack-o-lantern, jack-rabbit, jackal, jackanapes, jackass, jackboot, jackdaw, jacket, jackpot, Jacobean, Jacobite, Jacuzzi, jade, jaded, jag, jagged, jaguar, jail, jalopy, jam session, jam-packed, jamb, jamboree, jammy, Jan, jangle, janitor, January, japan, Japanese, jape, japonica, jar, jargon, jasmine, jasper, jaundice, jaundiced, jaunt,