形容词形式是ambitious；
ambitious：adj.有野心的；有雄心的；费力的；耗资的；耗时的
Chris is so ambitious, so determined to do it all
克里斯踌躇满志，决心要将它都做完。
I'm as ambitious as the next man. I'd like to manage at the very highest level.
我和别人一样雄心勃勃，想进入最高管理层。
He's a very ambitious lad and he wants to play at the highest level.
他是个很有抱负的小伙子，想参加最高水平的比赛。
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