洗涤剂

洗 = 先 + 氵 : It's shower day in the space station (Ø3)! Marie Curie (xi) and the FLOTUS (先) help wash (洗) each other using bottles of water (氵).

剂 = 刂 + 齐 : Joan of Arc (ji) is preparing a dose (剂) of her medicine in the space station's bathroom (Ø4). Usually she uses a gong as a nice and flat surface to prepare her medicine, but today only the drum is ready (齐). She distributes her medicine evenly and nicely on the flat surface using a kitchen knife (刂).