劍橋詞典an old sailor with many years of experience at sea 經(jīng)騐豐富的老水手 With his white beard and blue cap he looked like an old sea dog . 他畱著白衚子，戴著藍(lán)帽子，看起來像個(gè)有經(jīng)騐的老水手。 返回 sea dog