He had the audacity to say I was too fat.

　　他竟敢放肆地說我太肥胖。

　　I, for one, admire his audacity

　　比如說，我就很欽佩他的膽識。

　　I was shocked at the audacity and brazenness of the gangsters.

　　這伙歹徒如此膽大妄為、厚顏無恥，讓我很是震驚。

　　He may own the perspicacity and persistence to catch and keep the most valuable thing.

　　他可能擁有洞察力和堅忍力，可以抓住和保有人生中最寶貴的東西。

　　It was a marvellous effort of perspicacity to discover that I did not love her.

　　真是費了不少的勁才發現我本來就不愛她。