User blog comment:Berrybrick/BIONICLE Languages/@comment-183721-20100803213256

The Agori speak Agori. the Matoran speak Matoran, which is like binary to the Agori. The official explanation is that Mata Nui used the prototype robot to translate everything on Bara Magna, so Lewa couldn't understnad the Agori on Bota Magna because MN wasn't on Bota Magna.