krill

n [pl v] mass of tiny shellfish eaten by whales （鲸鱼吞食的）磷虾群.

koala, kobo, kohl, kohlrabi, kola, kook, kookaburra, kooky, kopeck (also kopek), koppie (also kopje), Koran, Koranic, Korea, Korean, kosher, koumiss, kowtow, kph, kraal, kremlin, kris, krona, krone, krugerrand, krypton, Kt, Ku-Klux-Klan, kudos, kukri, kumis (also kumiss, koumiss), kummel, kumquat, kung fu, kvass, kW (also kw), kwashiorkor, kwela, L, L (also l), L, l,