忠心耿耿

忠 = 中 + 心 : Julian Giant Squid (zhu) plays darts every day in front of the engine ((e)ng1). He is very loyal (忠) to his club and even has a darts board (中) tattooed onto his heart (心).

心 = 乚 + 丶 : Marie Curie (xi) uses a shovel (乚) to dig a hole in front of the encampment ((e)n1). She wants to bury her heart (心). To the side are three petal leaves (丶), with which she wants to cover it afterwards.