I was shocked at the audacity and brazenness of the gangsters.这伙歹徒如此胆大妄为、厚颜无耻，让我很是震惊。...

厚颜无耻...

brazenness的音标：brazenness的英式发音音标为：['breɪznnəs]brazenness的美式发音音标为：['breɪznnəs]...