Hu Sihai, a geography teacher, engraved a complete map of China in his heart. Red Melon Reef, a name that only appears in textbooks, re-entered his vision.
He sent letters full of good wishes to distant places, but he never knew whether the officers and soldiers of Chigua Reef could receive them. Since then, waiting has become a common tacit understanding between teachers and students. Hu Sih Kai: "The territory of the motherland is sacred and inviolable"