orcaɔ:kә英式朗读美式朗读基本解释n. 逆戟鲸,类逆戟鲸,魔鬼,兽人英文释义n predatory black-and-white toothed whale with large dorsal fin; common in cold seas词形变化复数orcas上一个单词：orc下一个单词：orcadian