C104 A moment of warmth

When Guo Jian heard this, he was dumbstruck, his mouth opened so wide that it could not close, and even a beard rose up, making him confused and confused. Not to mention the sword crafting master, if it was this era's most intelligent person, they would not even know what the kinetic energy equation was!

Seeing his expression, Long Tianyu knew that he had accidentally slipped into a conversation