内外 nèiwài inside and outside
inside and outside; domestic and foreign; approximately; about
How to remember 内外: 内 inside + 外 outside = inside and outside.
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How it is used
- Inside and outside - 国内外 (guónèiwài) domestic and foreign; 内外交困 (nèiwài jiāokùn) beset by troubles at home and abroad.
- After a number it means 'approximately': 三十岁内外 (sānshí suì nèiwài) around thirty years old.
- A compact paired opposite, usually fused into set phrases rather than used alone.