每次

每 = 𠂉 + 母 : Mnemonic symbol: from 每日一练, "train every day", somebody's doing some workout, e.g. push-ups.

每 = 𠂉 + 母 : Mahatma Gandhi does his daily training inside of the Eiffel Tower. He's quite advanced: He does single-handed push-ups with his supporting hand resting on a key, while Gaia sits on his back and mocks him.

次 = 冫 + 欠 : Mnemonic symbol: the cube, as in words involving 三次 relate to "cubic equations" or "cube (third power)". The King of Chu (c) pulls a popsicle (冫) out of the cube (次) in the space station's bathroom (Ø4) and leaves an IOU note (欠) on the cube.