血清

血 = 丶 + 皿 : Mnemonic symbol: blood transfusion.

Xu Xian hurt himself and needs to get a blood transfusion in the elevator's bathroom. He found a petal leaf as donor, which is bleeding droplets into a bowl; Xu Xian gets the blood from the bowl as infusion using some tubes.

清 = 氵 + 青 : In front of the engine, the Queen of Hearts suspiciously and closely inspects a fountain of youth. With a bottle, she scoops water again and again and inspects how clear the water is when she pours it back into the fountain.

清 = 氵 + 青 : In front of the engine, the Queen of Hearts suspiciously and closely inspects a fountain of youth. With a bottle, she scoops water again and again and inspects how clear the water is when she pours it back into the fountain.