相连
xiānglián · HSK 7
be linked together
🔗 相连 = 相 (mutual) + 连 (connect) = mutually connected, linked together
连 carries the connect/join sense (as in 连接 link up); 相 adds the reciprocal each-other meaning. Together they mean two or more things joined into one chain.
连 — 辶 (walk) + 车 (cart/vehicle)
Originally a compound of the 'walk/movement' radical 辶 and 车 (cart), depicting carts moving in succession along a road. From this came the core sense of things linked or following one after another, extending to modern meanings like 'connect,' 'join,' and 'continuous.'