psychiatrist (心理医生) at the University of California, San Diego, said older people are more likely to suffer from broken sleep, while younger people are better at sleeping efficiently straight through the night.
出自-2011年6月阅读原文
Werbach gives the example of several disneyland hotels in Anaheim, California, which used large digital leaderboards to display how efficiently laundry workers were working compared to one another.
2016年12月四级真题（第三套）阅读 Section B
英语六级真题
Future farms will likely experience a greater deal of autonomy as robots take up more and more farm work efficiently.
2018年12月六级真题（第三套）阅读 Section C
Lots of people swear they can absorb new information more efficiently at some times of the day than at others.
2017年6月六级真题（第一套）听力 Section C
People can shop more efficiently online and therefore don't need to go to as many stores to find what they want.
2019年6月六级真题（第一套）阅读 Section B
Setting the right carbon price will therefore efficiently align the costs paid by carbon users with the true social opportunity cost of using carbon.
2017年6月六级真题（第一套）阅读 Section B
Sometimes the old stuff just works better or more efficiently.
2019年12月六级真题（第二套）听力 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
效率高的;效能高的
If something or someone is efficient, they are able to do tasks successfully, without wasting time or energy.