ambitious' explanation from Longman Dict.:1determined to be successful, rich, powerful etc2an ambitious plan, idea etc shows a desire to do something good but difficult。依照以上的英英解释足以说明ambitious没有贬义雄心，野心在西方都是好东西，是一个人上进的表现，文化差异。另外，有雄心也可以用aspiring，aggressive.
