Optimus nodded...and felt a pang of worry. If he ever took damage in this place, there'd be plenty to worry about in regards to repairs vis a vis compatible parts, given the make of his vehicle mode and his being an alien robot from beyond the stars. He would have to take care to be extra careful.

But Akechi's follow-up comment gave him further pause.

"Let me try something," he said, in human English. Then, in Cybertronian, he spoke: "Can you understand what I am saying?"