Let's say there was a family business of making cork products. The son of the owner, who was known for making big corks, could have a story about how he learned the craft from his father. He might talk about the challenges of handling the cork material, which can be a bit finicky. He could also share stories about the interesting clients they had, like a winery that wanted custom - made big corks for their large - format wine bottles.
It depends on who 'her' is. If it's a student, her first big day could be the day she won a major academic award. Maybe she had been working hard all semester long, and on that day, she was recognized for her efforts and intelligence.
I'm not sure which 'her' you are referring to. It could be a story about a scientist making her first big discovery in a research field. For example, Marie Curie's first big discovery of radium was a huge milestone in the history of science. She worked tirelessly in a poorly equipped laboratory and overcame many difficulties to isolate this new element, which later had a profound impact on various fields like medicine and energy.
The topic you provided is inappropriate. Let's change it to something like 'What was her first big success story?' For that, it could be the time she won a major competition at school. She had been preparing for months, and her hard work paid off when she got the first prize.
I'm sorry but this description seems inappropriate. If we assume it's about a hen, perhaps it could be a story about a young hen encountering a large and impressive rooster for the first time in the farmyard. Maybe she was a bit scared at first but then they became friends.
I'm not sure what specific 'big black object' you are referring to. It could be many things, like a big black rock she saw during a hike, and it might have been an amazing discovery for her.
It could be that she had always been a bit afraid of heights and fast rides. However, on this particular day, she decided to be brave. As she sat in the roller coaster car, her heart was pounding. When it took off, she closed her eyes for a bit. But then she opened them and saw the amazing view as they went up and down. It was a wild and thrilling experience that changed her view of roller coasters.