The extra payments are a lifeline for most single mothers.

额外补助对大多数单身母亲来说都是赖以生存的生命线。

《牛津词典》

The conference is going to be a lot of extra work.

这次会议将意味着很多额外工作。

《牛津词典》

He picked up extra money as a local stringer for the New York Herald.

他通过做《纽约先驱报》的本地特约记者赚了些外快。

《柯林斯英汉双解大词典》

There is a small hole in the side to drain out extra moisture and keep from drowning the plants.

VOA: special.2011.06.14

They are very aggressive to be type-A people who just simply made two extra hours out of their 24-hour day.

他们渴望成为上等人,甚至希望每天,能多过两个小时。

麻省理工公开课 - 媒体、教育、市场课程节选

Now let me just say in a technical way: if you decide to volunteer to nominate a novel, you'll get no extra credit.

从实际角度讲：,如果你自愿推荐一部小说，你不会得到额外的学分。

耶鲁公开课 - 1945年后的美国小说课程节选

As head counts fell, the average workload for those associates has risen 2.3% since 2007, or about 50 extra hours a year.

WSJ: Law Firms Keep Squeezing Associates

Earlier reports have said that the University of Washington is planning to offer credit for Coursera courses, though students will likely have to pay a fee and do extra work with a U. of W. instructor.

FORBES: Free Online Education Site Announces Big Expansion

If it takes a couple extra days after a year, it takes a couple of extra days.

WHITEHOUSE: Press Briefing