Don't forget that history, not to record hatred, but to reflect on the tragedy and prevent it from repeating itself. Liang Qichao said: a strong teenager is a strong country, and a weak teenager is a strong country; Mao Zedong said: If you lag behind, you will be beaten ... That unforgettable historical tragedy warns us today: Only when we are strong, our motherland will not be bullied, and China will have hope. As young students, let's study hard, master skills and strive for the prosperity of China!