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.
韵
=
音
+
匀
:
Yu the Great (yu) has to wear a uniform (匀) and repeat the rhymes (韵) played out loudly on a loudspeaker (音) in the encampment's bathroom ((e)n4).