知
=
口
+
矢
:
Mnemonic symbol: Francis Bacon is attributed to have stated "scientia potentia est", "knowledge is power". I'll thus represent 知 by Francis Bacon. Francis Bacon (知) and James II of England (zh) are playing darts (矢) in front of the space station (Ø1). Because they lack a dart board they just use a mandarin (口).
easy / amiable / to change / to exchange / prefix corresponding to the English adjective suffix "-able" or "-ible" / abbr. for 易經|易经[Yi4 jing1], the Book of Changes
易
=
勿
+
日
:
Mnemonic symbol: a really easy puzzle consisting of only two parts.
Maud Younger (y) and the sun (日) are trying to complete a really easy puzzle (易) in the space station's bathroom (Ø4). It's not as easy as they thought though, because in zero gravity they can only move with the help of their bat wings (勿).
row / line / commercial firm / line of business / profession / to rank (first, second etc) among one's siblings (by age) / (in data tables) row / (Tw) column
to walk / to go / to travel / a visit / temporary / makeshift / current / in circulation / to do / to perform / capable / competent / effective / all right / OK! / will do / behavior / conduct / Taiwan pr. [xing4] for the behavior-conduct sense
行
=
亍
+
彳
:
Mnemonic symbol from "to travel": seven-league boots.
Xi Shi (xi) is tired of walking with a black sneaker on her left foot (彳) and a full armor boot on her right foot (亍). Fortunately she finds seven-league boots (行) in the engine's kitchen ((e)ng2).
difficult (to...) / problem / difficulty / difficult / not good
难
=
又
+
隹
:
Mnemonic symbol: a video game which is almost impossible to beat.
难
=
又
+
隹
:
Just inside the anthill's kitchen, Napoleon and a sparrow are trying to beat an insanely difficult video game. After playing and failing all day long Napoleon finally loses his temper and crashes the game wearing two boxing gloves.