You should absolutely apeal on this notice.
It is ok for overseas student to use translated dirvers' license.
Not every policeman/woman knows all regulation.
Good luck, mate!
楼主有空在这里发帖子问为啥不干脆上政府网站上查一下呢?这个是我查到的链接http://www.sa.gov.au/subject/Transport,+travel+and+motoring/Motoring/Interstate+and+international+motorists/Motorists+from+overseas/Driving+with+an+overseas+licence
留学生应该是short term visitor,翻译件是可以的,果断去投诉吧,千万别花了这个冤枉钱