牢牢: firmly, safely...
株: tree trunk, stump (tree root), a plant, classifier for trees or plants, strain (biology), to involve others (in shady business)...
船只: ship, boat, vessel...
专制: autocracy, dictatorship...
线: thread, string, wire, line, (after a number) tier (unofficial ranking of a Chinese city)...
歌迷: fan of a singer...
一句话: in a word, in short...
油画: oil painting...
口哨: whistle...
茶叶: tea, tea leaves...
