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- 四four
- 八eight
- 四个tetrad
- 八字character 8
- 四年four years
- 八个eight
- 四级four-stage
- 四国Shikoku
- 八成eighty percent
- 八方the eight points of the compass
- 四大the four elements [earth, water, fire, wind]
- 八宝eight treasures
- 四部four-part
- 四处all over the place
- 八进制octal
- 八大eight major
- 四倍fourfold
- 四舍五入round
- 八边形octagon
- 四角foursquare