Sci-fi is a short, everyday way to say science fiction: stories about the future, space, other worlds, made-up science, robots, time travel. People use it as a name for the whole kind of story (“I love sci-fi”) and as a describing word (“a sci-fi film”). It feels informal and friendly.

Sci-fi is a short, everyday way to say science fiction「sci-fi」是「science fiction」的簡短口語說法: stories about the future, space, other worlds, made-up science, robots, time travel講的是未來、太空、其他世界、虛構科學、機器人、時間旅行的故事. People use it as a name for the whole kind of story人們用它來指整個這種故事類型（"I love sci-fi"像「I love sci-fi」）and as a describing word也可以當形容詞用（"a sci-fi film"像「a sci-fi film」）. It feels informal and friendly這個字給人的感覺是輕鬆、親切

On a serious book cover, or in a university class, you may still see the full words science fiction. The little hyphen is normal: sci-fi.

On a serious book cover在正式的書封上, or in a university class或大學課堂上, you may still see the full words science fiction你還是可能看到完整的說法 science fiction. The little hyphen is normal這個小連字號是正常的: sci-fi就是 sci-fi

Some fans argue about what counts as “real” sci-fi and what is only a space adventure with no science in it; in ordinary talk, people are much looser, and a film with spaceships often gets the label anyway.

Some fans argue about what counts as "real" sci-fi有些影迷會爭論什麼才算是「真正的」sci-fi and what is only a space adventure with no science in it還是只是個沒有科學成分的太空冒險故事; in ordinary talk但在一般對話中, people are much looser大家隨性得多, and a film with spaceships often gets the label anyway一部有太空船的電影通常還是會被叫做 sci-fi