**Марсианин** — это человек, который живёт или предположительно живёт на Марсе.
Вот несколько примеров использования слова **«Martian»** в предложениях на английском:
1. Scientists have long speculated about the possibility of finding **martian** life forms on other planets.
2. The novel tells the story of a group of astronauts who crash land on Mars and have to survive among the **Martians**.
3. Some people believe that there are hidden bases on Mars where **Martians** are secretly studying Earth.
4. The discovery of methane on Mars has raised questions about the possibility of **Martian** microbial life.
5. In the movie, the astronaut meets a friendly **Martian** who helps him return to Earth.