交互 jiāohù mutual
mutual; interactive; each other; alternately; in turn; interaction
How to remember 交互: 交 hand over + 互 mutually = mutual.
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How it is used
- Interactive / interaction, chiefly a tech term - 人机交互 (rén-jī jiāohù) human-computer interaction, 交互设计 (jiāohù shèjì) interaction design.
- More technical than 互动 (hùdòng, interaction between people/audiences); 交互 dominates in computing and engineering.
- Also an adjective/adverb 'mutual, alternating' in formal writing.