As there is no further information about 'tg long story', it's impossible to say for sure. However, if it's related to technology given the 'tg' which might refer to Telegram, it could be about the evolution of the app and how it has affected people's communication in a long - term perspective. It might include stories of how users met, formed groups, and shared information over time.
Since I don't know the details of 'tg long story', I can't determine the main idea. It could be about love, for example.
If it's a story of people on the quay, the main idea could be the relationships and interactions among those people. For instance, the camaraderie among the dockworkers or the conflicts that arise in the quay community.
Since I don't know the 'xiao long story', I can't determine its main idea. It could be about friendship if Xiao Long has a close friend in the story. Or it could be about achieving a goal if he is on a quest.
The main idea might be about the challenges and experiences during a long winter. It could involve how people survive, the changes in the environment, or the emotions associated with such a long, cold season.
I don't know the story, so I can't say what the main idea is.
I'm not sure specifically as I haven't read this exact story. But generally, it could be about a journey on foot that has some sort of significance, like a self - discovery journey or a difficult trek back to a place that holds meaning.
The main idea could be about a journey, perhaps a physical or emotional one, where the character has to overcome many obstacles to reach their home. It might involve themes of self - discovery and perseverance.
I don't know the'sophie long child story' well enough to say its main idea. It could be about growth, friendship, or discovery depending on what the story is about.
I don't know the exact main idea as the details are scarce. But it could be about identity, as his long name is a part of who he is.
Well, 'A Long Walk to Water' mainly focuses on two parallel stories. One is about Nya, a young girl who walks a long distance every day just to fetch water for her family. The other is Salva's story. He is a 'lost boy' of Sudan who faces many challenges. Overall, it's about survival, hope, and the importance of water in Sudan.
I think the main idea is centered around the concept of change. As they walk, the two characters experience a shift in their relationship. It starts as a chance encounter but evolves into something deeper, and the long walk is a vehicle for this transformation. They are forced to confront their feelings and past as they move forward on this long journey.