adj.大胆的，鲁莽的，大胆创新的
It was audacious of him to tell me a downright lie.
他真有勇气,敢向我撒了个弥天大谎.
Your plan of going abroad is an audacious decision.
你计划出国是一项大胆的决定.
He described the plan as ambitious and audacious.
他把这项计划说成是雄心勃勃,敢于冒险.
汉字吧hanzi8.com