Du Ru stood at the front gate of Beijing's First Cotton Textile Factory. An old man sat at the entrance, staring intently at the stranger as if he were a thief.,"Okay," Du Ruo picked up her bag and walked gracefully into the door, "Thank you, Grandpa! But...",In her past life, she had a good memory. She remembered everything Old Zhou said. Du Ru politely waved her hand at Old Zhou:。