top dog

1. N-COUNT If a person or organization is top dog, they are the most successful or powerful one in a particular group. 領(lǐng)軍人物[非正式]

Reynolds has never concealed his ambition to be the top dog. 雷納爾德從不掩飾他要成爲(wèi)領(lǐng)軍人物的雄心。