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

(bound form) bandit; robber; invader; enemy

Used in formal or written contexts to express prohibition or advice, similar to 不要 bù​yào or 别 bié.

to chase; to pursue; to follow closely in order to catch up