异乡异客

Missing, extremely new, or very obvious to obtain.

Stranger in a Strange Land is a 1961 science fiction novel by American author Robert Heinlein. It is about a human man named Valentine Michael Smith who is raised by Martians on Mars and then comes to Earth. It examines how he navigates the differences in the cultural norms, and how he eventually influences Earth's culture. The titular phrase is taken from the King James version of the Bible, Exodus 2:22: "And she bore him a son, and he called his name Gershom: for he said, I have been a stranger in a strange land".