The cultural references in science fiction can be difficult to translate. A story might reference a particular historical event or a cultural icon from the author's home country. Translators need to either find a similar reference in the target culture or find a way to explain it without losing the essence of the story. For example, if a science - fiction story in the US mentions the Apollo moon landings as a reference for a future space exploration mission, a translator into a language of a country with no such space - faring history needs to be creative.
Itchy had two meanings. The first meaning was a feeling of skin or mucus membrane being stimulated and needing to be scratched. It could also describe a strong desire that was difficult to suppress. The second meaning was a stimulating feeling that made people want to scratch, also known as itching.
One of the best ways is to have a deep understanding of both the source and target languages' cultural backgrounds. Science fiction often contains unique concepts, so being familiar with the genre's common tropes in different cultures helps. For example, in English - speaking countries, some science - fiction concepts like time travel are very common, but they might be expressed differently in other languages. Translators also need to be good at handling technical terms which are abundant in science fiction.
I'm not entirely sure specifically about 'Harry Crow traduction fanfiction' as it's not a widely known mainstream title. It could be a fan - created work related to a character named Harry Crow, perhaps in a particular fictional universe where someone has written their own stories (fanfiction) and translated them ('traduction').
One story could be of a lymphoma patient who constantly felt an itch on their arms. They initially thought it was just a normal skin irritation. But as the itch persisted and was accompanied by other symptoms like fatigue, they went to the doctor. After a series of tests, it was discovered they had lymphoma. The itch was a sign that their body was reacting to the abnormal cells in the lymphatic system.