n.不礼貌，粗鲁...

discourteousness的音标：discourteousness的英式发音音标为：[dɪs'kɜ:tɪəsnes]discourteousness的美式发音音标为：[dɪs'kɜtɪrsnes]...

What shocked me was the discourteousness and ignorance of the professor.震惊的不是学生的大胆,而是教授的粗鲁与无知....