Performance breakthroughs seem to come in two varieties: easy and hard.

性能突破似乎有两种不同的实现方式：简单的和困难的。

youdao

Pwgen generates passwords that can be random (hard to remember) or easy on the brain (not to hard to remember).

pwgen可以生成难以记住的随机密码或容易记住的密码。

youdao

Everything is not easy at the beginning, but if you study hard, it will get better.

做每件事开始都不容易的，但是只要你努力学习，会变好的。

youdao

But the Navajo homeland is harsh country, where it's hard to find good-paying jobs and all too easy to fall sway to alcoholism and despair.

VOA: standard.2010.03.22

Frost is not after "easy gold" but rather hard-earned wages.

弗罗斯特不追寻这些轻易得来的金钱而是实在地挣钱。

耶鲁公开课 - 现代诗歌课程节选

It is the case -- to introduce some jargon -- it is the case that the easy pass for the attacker, weakly dominates the hard pass for the attacker.

对入侵者来说,我们再词引入术语,对入侵者而言,平坦之途,弱优于崎岖之途

耶鲁公开课 - 博弈论课程节选

Income from wealth is easy to hide and hard to tax -- and perfectly legally.

CNN: Why do the Romneys pay so little in taxes?

And that's why we've been working so hard on designing an easy-to-use form that standardizes this information and makes the true cost of higher education much more transparent.

WHITEHOUSE: Press Briefing

It is easy to accuse the Fund of hard-heartedness.

ECONOMIST: Calling the wrong shots? | The