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

The activist have purge the party of moderates or have purge the moderates from the party.

激进分子清洗了党内的温和派分子。

youdao

The large number of soldiers is also the only way to ensure a purge of the Baath Party, which is a hindrance to security and governance.

ECONOMIST: Post-war Iraq

When he assumed power upon the death of President Chiang Ching-kuo, he immediately turned to Chiang's former personal secretary, James Soong Chu-yu, to seek an alliance to purge the party of the old-guard mainland faction.

CNN: ASIANOW - Asiaweek | From Our Correspondent | Lee Teng-hui

Experts tell China Daily that the purge of unqualified members is the party's "latest and toughest stand against corruption".

BBC: China media: 'Unqualified' party members targeted