audacious
US
UK audacious adj: (daring)
SC 勇敢的, 大胆的
The rock climber made an audacious plan to climb a famously steep cliff.
攀岩者制订了一个大胆的计划，打算攀爬一处以陡峭著称的悬壁。
audacious adj: (insolent, disrespectful)
SC 鲁莽的, 莽撞的
The audience was upset by the politician's audacious remark.