縱線

纵 = 从 + 纟 : Zapatista Zebra (zu) is weaving a small blanket in the engine's bathroom ((e)ng4). As horizontal threads he uses silk worms (纟), and as vertical (纵) threads he uses rubber chicken (从).

线 = 戋 + 纟 : Mnemonic symbol: barbed wire.

线 = 戋 + 纟 : The silk worm wants to use the floating tank in the anthill's bathroom, but there's already Marie Curie inside—and she secured the tank by setting up barbed wire all around it.