斜線

斜 = 余 + 斗 : Marie Curie (xi) has the matador (斗) pull her sedan chair (余) through the elevator's kitchen (e2). Since there is no-one at the rear end of the sedan chair, the end just drags over the ground and the sedan chair is very slanted (斜), just like a slanting tower.

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.