Hands-free appliances included dishwashing machines, sweeping robots, washing and drying machines, washing machines, and dryers. The dishwashing machine could save the time and effort of washing the dishes by hand; the sweeping robot could automatically sweep the floor and mop the floor, freeing both hands; the integrated design of the washing machine and the drying machine could save the trouble of washing and drying clothes. In addition, there were other small household items that could also free hands, such as hinged lights and lemon acid. The hinged light could be automatically lit when the cabinet was opened, freeing the hand that was illuminating, and the lemon acid could be used to clean the home, reducing the workload of wiping by hand. In short, using these appliances and small items could allow time and energy to be spent on more beneficial things, achieving true hands-free.
The 'big brother hands' might be significant as they could represent strength. In the story, they could be the means by which the big brother provides protection, like fending off danger or shielding someone.
Maybe they are the hands of an old carpenter. Years of handling tools, cutting wood, and building furniture have left marks on them. The calluses could be from the countless times he held the rough lumber, and the scratches might be from the occasional misstep with a sharp chisel. Each line and mark on those hands is like a chapter in the story of his craftsmanship.
The black thing in Chen Pingping's hand was a mysterious button hidden under her wheelchair. Two lethal shotguns were hidden in this button. Chen Pingping was eager to try this button because she wanted to use these two guns to deal with the Qing Emperor and take revenge for Ye Qingmei. The existence of this button and shotgun was to protect Chen Pingping's own safety, especially when the Qing Emperor was persecuting her. This black thing represented the power and resistance in Chen Pingping's hands.
Qing Yuannian's Vicious Hand was a chapter in Qing Yuannian's novel. The specific content could only be understood after reading this chapter. We know that Celebrating Years is a novel created by Maoni, and there are also corresponding mobile games and movies. However, the search results didn't provide the specific plot or meaning of Qing Yuannian's ruthlessness. Therefore, based on the information provided, I am unable to answer the specific content of Qing Yunian's ruthless hand.