เสียงที่ใช้ร่วมกัน

“Your body… hides something massive…” “Inside you right now… are thousands of blood vessels.” “But here’s the crazy part…” “If you stretched all of them out…” “They would reach over 100,000 kilometers.” “That’s enough… to circle Earth… more than twice…” “All inside your body… right now.” “And you never even notice…”