Why is it called Angie 12 1 in the love of parents? What episode is it about?

When Angie went out to fetch water for the first time after arriving on the island, she was dressed in fashion and high heels. Walking on the dirt road is unstable, just as a group of soldiers shouted the slogan of one two one. When she was nervous, she fell. Because of this, she caused a sensation on the island, which is a prelude. Later, she was pregnant with twins, and her sister An Xin and sister-in-law Dehua came to take care of her by boat. She and Jiang Defu went to the dock to meet her. At the dock, several female soldiers of the communication company whispered behind their backs, joking that Jiang Defu was afraid of his wife, and Anji was too powerful, lamenting that Anji's belly was so big and she was so beautiful after giving birth to two children. As soon as they were together, they were nicknamed "12 1" and laughed and cried behind their backs for a while. This is the origin of "12 1"