改選的英文：
to reelect

We have to reelect a monitor.
我们需要重选一名班长。

It is officially announced that he will not run for reelection.
据正式宣布，他将不再为连任而参加竞选。

By popular request, the chairman was re-elected.
徇众要求，主席获重选连任。

a reelection campaign that was expected to be her last hurrah.
再次竞鸦视为她政治生涯的最后努力

The mayor has a political machine working for his reelection.
市长有一政治机构为他的重新当选而奔波。