incumbent

Incumbent officeholders are difficult to defeat at the polls.

现任官员很难在选举中被击败。

He triggered upheavals in computing, music, telecoms and the news business that were painful for incumbent firms but welcomed by millions of consumers.

他引发了计算机、音乐、电信和新闻行业的剧变，这些变动对现有公司来说是痛苦的，但却受到了数百万消费者的欢迎。

After the 2006 election, Sean Trende constructed a graph comparing the incumbent campaign spending advantages with their eventual margins of victory.

2006年大选后，肖恩·特伦德制作了一张图表，将现任总统的竞选开支优势与他们最终的获胜优势进行比较。

She felt it was incumbent on herself to act immediately.

她感到立即采取行动是她义不容辞的责任。

He runs a strongly incumbent food company.

他经营者一家占市场份额相当大的食品公司。

In general, incumbents have a 94 percent chance of being re-elected.

一般情况下，现任官员有94%的几率会再次当选。