They allow you to save effort by doing work once instead of repeating it each time you need it.

它们让你通过做一次工作来省力，而不用你每次需要它的时候都重新做一遍。

youdao

Word processor styles are like declarations of a variable in source code: They allow you to save effort by doing work once instead of repeating it each time that you need it.

文字处理器的风格就像是源代码中变量的说明，他们允许你把一次工作的努力保存下来而不需要每次需要的时候都重新做一遍。

youdao

That would save effort, time and money.

这一切可能会省力、省事和省钱。

youdao

Truman then launched an effort to save the Greek economy and reorganize the Greek army.

VOA: special.2011.08.04

Then I started to think, "Is there any way that we can save the consumers' effort and integrate everything, every function, every application, every information needs that a user wishes into one box?"

于是我开始思考，有没有一种办法，使得消费者’,省下精力与时间，将所有功能，所有应用，所有信息，按照用户所希望的，整合到一个搜索框内？

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

And we report on an effort to save wild lions in Africa.

VOA: special.2009.05.05

Holtby countered with a 26-save effort.

WSJ: Rangers trim series deficit to 2-1 against Caps

Before Wednesday, he had allowed two goals or fewer in 12 of his previous 18 games, and he authored his finest performances in the three games that he faced his highest shot totals: a 39-save shutout against Ottawa, a 45-save effort in a triple-overtime victory over Washington, and a 36-save shutout of the Devils in Game 3.

WSJ: For Lundqvist and Rangers, a Bad Time to Look Vulnerable

Carlisle showed more energy and movement than their rivals and Bridge-Wilkinson pounced on some sloppy Leeds play only for Ankergren to save his effort.

BBC: Leeds 1-2 Carlisle