Our engines would not understand your instruments, or your instructions.

Kasaelek was still dazed, but not to the point where he couldn't understand his comrade's instructions.

It was ten minutes' walk to the lodge, and he had to make the gate-keeper understand his instructions.

I think you Understand your instructions, do you not?

I mean, I couldn't understand my instructions in the paddock.

"Do the rest of you understand my instructions?"

But I did not quite understand your instructions.

"I understand your instructions and they shall be implemented."

That didn't necessarily mean the officers in question had actually understood their instructions, however.

"Now you're perfectly sure," said the Captain, "that you understand your instructions?"