Computers are very efficient at manipulating information.

计算机在处理信息方面效率极高。

《牛津词典》

As we get older, our bodies become less efficient at burning up calories.

随着一天天衰老，我们的身体消耗热量的功能逐渐减弱。

《牛津词典》

This friction tends to slow the speed of winds, making them far less efficient at dispersing pollutants.

这种摩擦往往会减慢风的速度，使它们吹散污染物的效率大大降低。

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Charity Navigator says the most efficient charities spend at least seventy-five percent of their budget on their programs and services.

VOA: special.2009.11.02

There are other vectors that are very efficient at getting DNA into cells.

但是存在某些其它载体,能易如反掌地将DNA导入细胞

耶鲁公开课 - 生物医学工程探索课程节选

And things are not as efficient as they were at the beginning of the day

而工作的进展也没有之前那么有效了。

Let's 课堂 - SpeakingMax英语口语达人

U. will be more efficient at doing good and refrain from making inane decisions.

FORBES: Ireland's 'No' Gives Europe Breathing Room

Indeed, many people assume that biotechs are more efficient at inventing drugs than drug companies are.

FORBES: Biotech Blues

The US-based scientists discovered that older ants were significantly less efficient at cutting leaves.

BBC: Earth News - Leaf-cutter ants retire when their teeth wear out