下不為例

not to be repeated / not to be taken as a precedent / just this once

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action

no; not so / (bound form) not; un-

as (in the capacity of) / to take sth as / to act as / to serve as / to behave as / to become / to be / to do / by (in the passive voice)

because of / for / to

used in the construction 以...為例|以...为例, "to take ... as an example"

example / precedent / rule / case / instance