C591 Anti-sales

"There is a saying in Han Country, 'Know yourself and know your enemy, and never lose a battle'." Qin Guan began to trick him. Anyway, how could he translate it? That was a matter of Elementary Scholars. With their Elementary Scholars' abilities, could it be that they couldn't make up a simple proverb?

"Yesterday's combat training was certainly because of the high flying ability of our pilots