knack

n.诀窍，做事情的灵巧的，便利的方法

kitchenette, kite, kite-flying, Kitemark, kith, kitsch, kitten, kittenish, kitty, Kituro, Kivu, kiwi, kiwi fruit, KKK, klaxon, Kleenex, kleptomania, kleptomaniac, km, kn, knacker, knacker's yard, knackered, knapsack, knave, knavery, knavish, knavishly, knead, knee, knee-breeches, knee-deep, knee-high, knee-jerk, knee-length, kneecap, kneecapping, kneel, kneel down, knees-up,