Another bribery scandal

presidential hopefuls should learn lesson

for questioning allegations that..

It's deplorable to see another corruption bombshell explode as the Lee administration draws to a close.
The malpractice of graft scandals near the end of a president's term seems the norm in Korea.

in exchage for favors
is suspected of peddling influence in return for money
surnamed Lee
denied the bribery allegations

to deal a heavy blow to the administraon, which is already reeling from a string of curruption cases involving the President's relatives and close confidants.

which has traditionally been a sanctuary in Korea
to dig deeper into..

which has a shameful track record in  looking into...
high-profile figures
to narrow the scope of its investigation

who are poised to wage a fierce battle in the run-up to the Dec. 19 presidential election.
all of them without exception ended up with shameful corruption cases coming to light..