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Photo taken on Jan. 10, 2021 shows Cao Ziyang (R), a high-speed train conductor, answering a passenger's questions. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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Photo taken on Jan. 10, 2021 shows Cao Ziyang, a high-speed train conductor, helping passengers carry luggage. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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Photo taken on Jan. 10, 2021 shows Cao Ziyang, a high-speed train conductor, checking body temperature of staff members. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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Photo taken on Jan. 10, 2021 shows Cao Ziyang (R), a high-speed train conductor, helping a passenger board the train. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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Photo taken on Jan. 10, 2021 shows Cao Ziyang, a high-speed train conductor, patrolling along the train. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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File photo taken in Feb. 2020 shows Cao Ziyang (R), a high-speed train conductor, works as a volunteer in his community. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua)
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Cao Ziyang (R), a high-speed train conductor, receives the COVID-19 vaccine in Jinan, east China's Shandong Province, Feb. 5, 2021. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)
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Photo taken on Jan. 10, 2021 shows Cao Ziyang (1st R), a high-speed train conductor, answering passengers' questions. Working as a conductor of high-speed trains in Jinan section, Cao has been fighting against the COVID-19 epidemic since its beginning. He delivered epidemic prevention supplies to Wuhan many times in 2020, and has been working as volunteer in the community he lives in. (Xinhua/Wang Kai)