"Can my son recognize who I am?" This line appeared at the beginning of the film, reflecting the soldiers' concern and worry about their families before going out to war. This question is a touching prologue, which shows the soldiers' feelings of home and country to the audience.

"Persevere in serving the people." This is the slogan repeatedly emphasized in the film, which reflects the tenacity of China volunteers and their determination to serve the people. This slogan is also one of the core themes of the film.

"If you are not afraid of sacrifice, you are afraid of being lazy." This line emphasizes the soldier's perseverance and spirit of not being afraid of difficulties and hardships, and also warns of laziness and negative attitude.

"When I set foot on the fiery battlefield, I firmly took steps, and every step was dedication." This line expresses the bravery of the soldiers on the battlefield. Every step of them is a determination to contribute to the country and the people.

"We are sons and daughters of the motherland, and we have a clear conscience in our lifetime." This sentence emphasizes the patriotic feelings and pride of the soldiers. They fought bravely for the honor of their motherland and had no regrets.

"When a person has an ideal, whether he is poor or rich, happy or miserable, he must realize it, struggle and pursue it." This sentence expresses the thoughts of the characters in the film and emphasizes the importance of ideals and the determination to fight for them.

"As long as the people need it, we will defend our homeland at all costs." This line emphasizes the determination and sense of responsibility to defend the motherland. In order to defend the country, the soldiers are willing to do whatever it takes, including sacrificing their own lives.

"The red star shines on China, and the voices and feelings of the people are integrated into it." This line appears at the end of the film, expressing the theme of the film, that is, the hearts of the people are together with the motherland, and the red star symbolizes the hope and future of the country.