Resting stages thus comprise a series of adaptations that allow the species to avoid the most difficult conditions for life.

因此，休眠期包含了一系列的适应过程，使物种能够避开最困难的生存情形。

youdao

It is difficult for us to imagine what life was like for slaves in the ancient world.

我们很难想象古代奴隶的生活是怎么样的。

youdao

In wider and more difficult areas of life, there is evidence to indicate that natural surroundings improve all kinds of things.

在更广阔，更艰难的生命领域中，有证据表明自然环境可以改善各种事情。

youdao

"Big ears, big old jug ears like that." Pett says,cartoonists are essential to showing the lighter side of life, especially in difficult times.

VOA: standard.2010.03.20

Some people find that a psychologically difficult thing to accept, but I've believed that pretty much all my life, so I'm quite comfortable with it.

有些人会觉得心理上,很难接受这一点，但在我的人生中，我一直相信这一点，我也坦然接受这一点。

普林斯顿公开课 - 人性课程节选

Toward the end of his life while he was still 100% lucid, it was more difficult for him to be mobile and to go into organizations.

在他生命的最后当他头脑还百分百清醒时，活动和参加组织活动对他来说更加困难了。

哈佛公开课 - 幸福课课程节选

Bruce has been at St Andrews for six years, but appeared to be on the brink of losing his job after a difficult start to life in the Championship last season.

BBC: Doyle tips Bruce to keep Blues up

The village certainly continues to make me happy and I find it difficult to imagine life without the occasional visit.

BBC: Is this Britain��s most bizarre village?

When we frame everything from the difficult to the life-threatening as a challenge to be met rather than as a threat to avoided or confronted, we just naturally tackle the problem before us.

FORBES: Consider Negotiation a Challenge to Get a Better Deal