If you are still in Brisbane, take your original University academic transcript to the 台灣駐布里斯本辦事處. They can certify and authenticate your academic transcript. Next, you will have to translate the authenticated copy, print it out and take it to a notary public who can translate both English to Chinese and vice versa. Make sure you follow the same format as your academic transcript. You can have the Notary Public to certify your authenticated academic transcript in Taiwan. Make sure you provide a copy of the academic record and tick not to certify on the original copy. If they did it on the original copy, then you might have to go back to your university to get another new copy.