- 血肉相连 xuèròuxiānglián inseparableone's own flesh and blood; closely related
- 骨肉相连 gǔròuxiānglián inseparableclosely intertwined or linked together by deep, inseparable bonds
- 互相连接 hùxiāngliánjiē interlinked
- 密切相连 mìqièxiānglián interlinkedto be closely connected or related; to relate closely