232) l

gun

232a) 中

zhong

center; middle

object 口 [symbol] + piercing/penetrating丨 [gǔn]

This character describes an object (口) which is pierced (丨) in the middle or center. It also means that China is the center of the world.

232bx) 钅

jin

232b) 钟

zhong

bell; clock

metal 钅=金¹⁹⁹[jīn] + center 中 [zhōng]

Signifies a metal (symbol) bell being hung on the center (中) of the bell tower. In the olden days, the bell tower of town offices also served as clocks.

232d) 书

shu

book

writing/script  [symbol] + brush丨 [symbol]

Signifies writing of characters (symbol) using brush (丨), which ends up becomes a complete book.

232c) 种 / 种类

zhong / zhonglei

seed; species

rice plant 禾¹³⁹[hé] + center 中 [zhōng]

Seeds of crops, which can be stored and transported, is the central (中) part of cultivating crops (禾). As well, a same seed will always yield a same crop – thereby also doubling as the meaning of species.