to dredge / to clear away obstruction / thin / sparse / scanty / distant (relation) / not close / to neglect / negligent / to present a memorial to the Emperor / commentary / annotation
疏
=
㇇
+
止
+
㐬
:
Mnemonic symbol: a dredger. Sheldon Shrimp (shu) is operating a dredger (疏) in front of the space station (Ø1). First he clears the way of all the beaks (㇇) and pendant-cups (㐬), then he puts up a barrier (止) to stop the space-road from being obstructed again.
于
=
亅
+
二
:
Mnemonic symbol: prepositions are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.
Yu the Great was assigned to repair the electrics of the space station's entrance, but instead she was snacking some honey from a honey jar. Now her capacitor got stuck in the honey and she has to use a crowbar to lever it out.
(of time or place) in; at; on / (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for / (indicating a source) from; out of / (used in comparison) than / (used in the passive voice) by