poor; impoverished; destitute

to use up; to exhaust; to pursue to the limit; to reach the end of something

thoroughly; exhaustively; to investigate something to its very roots

extremely; to the highest degree; to the limit

(bound form) remote; secluded; desolate

(colloquial) to do something persistently or pointlessly despite limited ability or common sense

in a difficult situation; at a dead end; cornered (as in 穷寇 qióng​kòu or 穷途末路 qióng​tú​mò​lù)