One famous work of science fiction is “Ringworld”, by Larry Niven.
《环形世界》是一部著名的科幻小说,作者是拉瑞·尼文。
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This would include building huge structures in space such as a Dyson sphere or a star-girdling "ringworld," as envisioned in the 1970 Larry Niven sci-fi story of the same name.