形容词

1. It was audacious of him to try that.
他试图做那种事，真是鲁莽。

1. 大胆的,有冒险精神的：aspiring 有志气的,有抱负的 | audacious 大胆的,有冒险精神的 | capable 有能力的,有才能的

2. 大胆创新的：value-added tax 增值税 | audacious 大胆创新的 | demonstration lecture 示范课

3. 大胆的：assiduous#勤勉的 | audacious#大胆的 | avid#贪婪的

1. 敢于冒险的；大胆的
Someone who is audacious takes risks in order to achieve something.

e.g. ...an audacious plan to win the presidency.
为当选总统而制订的大胆计划