瓷
=
次
+
瓦
:
The King of Chu (c) accidentally smashed all the chinaware (瓷) in the space station's kitchen (Ø2) so he wants to pull new porcelain out of the cube (次), but he just gets roof tiles (瓦) all the time.
next in sequence / second / the second (day, time etc) / secondary / vice- / sub- / infra- / inferior quality / substandard / order / sequence / hypo- (chemistry) / classifier for enumerated events: time
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.