Tax progressivity is often at odds with efficiency.

at odds with 教你一招 可译为“与...想牴牾” 改译：累进税往往同高效率相牴牾。

youdao

Becoming obsessed with efficiency can make us cowardly.

沉迷于效率会让我们变得懦弱。

youdao

People who become obsessed with efficiency can become rather joyless.

热衷于效率的人变得很少高兴。

youdao

He talked with one group about creating jobs by promoting energy efficiency and so-called clean energy.

VOA: standard.2009.12.04

I was going to start showing you some examples, but I think, rather than doing that, I'm going to stop here, I'm going to give you two minutes back of time, but I want to just point out to you that we are going to have fun next week, because I'm going to show you what in the world that has to do with efficiency.

我想再给你们讲解一些例子，但是我想想还是算了吧，给你们两分钟休息时间,但是我想告诉你们,我们下周的课,会很有意思,我会告诉你们,到底是什么决定了效率。

麻省理工公开课 - 计算机科学及编程导论课程节选

But the things we were trying to stress were that it's an important design decision when you are coming up with a piece of code, as to what kind of efficiency your code has.

但是我们这里要强调的是,当你写代码的时候,决定你的代码的效率的很重要的事情，就是你的设计决定。

麻省理工公开课 - 计算机科学及编程导论课程节选

Ninety percent of the states with efficiency policies are meeting or exceeding their targets.

FORBES: America: The Worldwide Leader In Wasting Energy

The problem with efficiency gains is that we inevitably reinvest them in additional consumption.

NEWYORKER: The Efficiency Dilemma

The organizations start losing money and hence go out of business, until a preoccupation with efficiency re-emerges.

FORBES: How To Be Happy At Work