His first act as leader was to purge the party of extremists.

他当上领导的第一件事就是清除党内的极端分子。

《牛津词典》

They managed to purge the party of undesirable members .

他们努力清除了党内不合格分子。

youdao

To purge the party of disloyal members is helpful to our following business.

清除党内不忠分子对我们以后工作有利。

youdao

Some Democrats, including White House advisor David Axelrod, believe conservatives are trying to purge moderates from the Republican Party.

VOA: standard.2009.11.02

The 2012 election amounted to a desperate attempt by the electorate to purge the Republican Party of clueless conservatism.

FORBES: Paul Ryan Brilliantly Evokes Clueless Conservatism

Their prime tactic is to crisscross the country urging voters to oust Democrats from office and purge the Republican Party of members deemed "RINOs, " or "Republicans in Name Only, " considered not conservative enough.

CNN: STORY HIGHLIGHTS

But the new system offers the Blair government one significant bonus a chance to purge the European party of old Labour dissidents.

ECONOMIST: Britain and Europe