"奇妙同居" (Qímiào tóngjū) means "Amazing Co-living" or "Wonderful Shared Living" in English. This phrase could refer to many different situations where people live together in an interesting or unique way. Here are a few possibilities:

1. Roommates sharing an apartment in a fun or unconventional way

2. A group of friends or strangers participating in a reality TV show about living together

3. A shared living arrangement that brings people from different backgrounds or cultures together

4. A co-living space designed for entrepreneurs or creatives to live and work together

5. A situation where two people from very different lifestyles or personalities find unexpected harmony while living together

6. An online community or virtual "living" space where people interact in interesting ways

The exact meaning would depend on the context in which it's used. It suggests a positive, intriguing living situation that goes beyond typical roommate arrangements. Do you have a specific scenario in mind for this phrase? I'd be happy to elaborate further if you provide more details.