maintain/conserve/preserve.导航词义：维护，保护

1. maintain:v. 维护，保养.指经常维修机器、建筑物等，使其保持良好状态。

Which company is responsible for maintaining this equipment?

哪家公司负责维护这台设备？

The garden is large and difficult to maintain.

这个花园很大，难以养护。

2. conserve:v. 保护，保存.较正式用词，通常指保护自然资源使其不发生改变或破坏。

We must conserve our land/natural resources for future generations.

我们必须为后代子孙保护土地/自然资源。

Some environmentalists urged that the government take effective measures to conserve the wildlife.

一些环保人士呼吁政府采取有效措施保护野生动物。

3. preserve:v. 保护，保存.指将某物完好地保存，通常用被动语态。

The city council spent a lot of money to preserve the old castle.

市政委员会花了不少钱来保护那座古城堡。

This bowl has been preserved intact.

这个碗保存得完好无损。

The house from 15th century has been perfectly preserved.

这座建于15世纪的宅第保存完好。

全部

1·We need to preserve the forest.

我们需要保护森林。《柯林斯英汉双解大词典》

2·We will do everything to preserve peace.

我们将竭尽全力维护和平。《柯林斯英汉双解大词典》

3·Efforts to preserve the peace have failed.

维护和平的努力失败了。《牛津词典》

4·He was anxious to preserve his reputation.

他急于维护自己的名声。《牛津词典》

5·We need to preserve the element of surprise.

我们得保留一些使人感到意外的东西。《牛津词典》

6·We have to act to preserve the unity of this nation.

我们必须行动起来以维护这个国家的统一。《柯林斯英汉双解大词典》

7·The society was set up to preserve endangered species from extinction.

成立这个协会是为了保护濒危物种不致灭绝。《牛津词典》

8·CCT programs have helped preserve traditional lifestyles.

有条件现金援助项目有利于保护传统的生活方式。

9·To help them survive, we need to preserve their habitats.

为了帮助它们生存，我们需要保护它们的栖息地。

10·Van Oosten and colleagues worked to preserve Gilardi's sculptures.

范·奥斯坦和同事曾致力于保护吉拉迪的雕塑作品。

保护

1·We need to preserve the forest.

我们需要保护森林。《柯林斯英汉双解大词典》

2·The society was set up to preserve endangered species from extinction.

成立这个协会是为了保护濒危物种不致灭绝。《牛津词典》

3·To help them survive, we need to preserve their habitats.

为了帮助它们生存，我们需要保护它们的栖息地。

4·CCT programs have helped preserve traditional lifestyles.

有条件现金援助项目有利于保护传统的生活方式。

5·Van Oosten and colleagues worked to preserve Gilardi's sculptures.

范·奥斯坦和同事曾致力于保护吉拉迪的雕塑作品。

保存

1·Louis sees the project as a way to preserve history as it happens.

路易斯把这个项目看作是保存历史的一种方式。

2·With refrigerators and freezers, we can preserve a lot of different foods in our homes.

有了冰箱和冰柜，我们可以在家里保存很多不同的食物。

3·Tanco, a leather manufacturer, uses large quantities of common salt to preserve animal hides.

皮革制造商 Tanco 使用大量食盐来保存兽皮。

4·They are in a separate room where the temperature is controlled, to preserve the old paper in them.

它们在一个温度受到控制的单独房间里，以保存其中的旧纸。

5·We write to preserve our family histories so our children and grandchildren can learn and appreciate their heritage.

我们写作，是为了保存我们的家族历史，这样我们的孩子和孙子就可以学习、欣赏他们继承的遗产。

维护

1·We will do everything to preserve peace.

我们将竭尽全力维护和平。《柯林斯英汉双解大词典》

2·Efforts to preserve the peace have failed.

维护和平的努力失败了。《牛津词典》

3·He was anxious to preserve his reputation.

他急于维护自己的名声。《牛津词典》

4·We have to act to preserve the unity of this nation.

我们必须行动起来以维护这个国家的统一。《柯林斯英汉双解大词典》

5·They value the environmental quality they preserve over their oil imports from abroad.

比起从国外进口的石油，他们更重视所维护的环境质量。

维持

1·In lower paid occupations, when wages have been reduced, workers have added hours in overtime or extra jobs to preserve their living standards.

对于薪资较低的职业，工人会在薪资降低时增加加班的时间或者做额外工作，以维持他们的生活水准。

2·By sparingly choosing when you see her, you preserve an air of mystery that will pay off dividends later on.

通过谨慎地选择你和她见面的时机，你就维持了神秘的气息，而这会在稍后产生好处。

3·We need to know how to get in touch with others to maintain healthy relationships that help us stay healthy and preserve our quality of life.

我们得学会怎样与别人相处，以获得与他人良好的关系。 而这种关系，能帮我们处于健康的状态，维持我们的生活质量。

4·Some of the most popular of today's schemes-such as paying employers to cut hours rather than jobs, as in germany-try to preserve the Labour force in aspic.

一些如今最流行的方案——比如说像德国那样，给钱给雇主，让他们裁剪工时而不是工作——试图使劳动力维持在原有状态。

5·They say, Only lazy women don't preserve their beauty.

它们说：只有懒女人才不维持她们的美。

保护区

1·Take you up to Westfield's natural preserve for a short hike or to practice skipping stones in the large pond.

带你去韦斯特菲尔德自然保护区进行短途旅行，或者在大池塘中练习跳石块。

2·We reclined in the wooden amphitheatre for an awe-inspiring tour of the night sky in this dark sky preserve.

在这个天空幽暗的保护区里，我们倚靠在木制的圆形剧场里观赏令人敬畏的星空。

3·A black bear cub peers from a Cottonwood tree after being scared up there by a visitor to the Whitewater Canyon nature preserve near Palm Springs, California.

加利福尼亚棕榈泉附近的白水大峡谷自然保护区里面，一头年幼的黑熊被游人吓到后从一颗三角叶杨后面窥视。

4·When the Adirondack Park was established in 1892, it was intended to be a preserve, not an experiment.

在1892年阿迪朗达克公园建成的时候，是用来作保护区的，而不是实验区。

5·The mountain was a nature preserve, with no hunting allowed, but poachers frequently sneaked in.

那个山区是个自然保护区，不准捕猎，但是总有非法盗猎者偷偷潜入。

保全

1·We are shocked when we think of death, and we spare no pains, no trouble, and no expense to preserve life.

我们想到死便惊恐不已，因而不惜一切努力、麻烦和费用来保全我们的生命。

2·Now therefore be not grieved, nor angry with yourselves, that ye sold me hither: for God did send me before you to preserve life.

现在，不要因为把我卖到这里自忧自恨。这是神差我在你们以先来，为要保全生命。

3·Mercy and truth preserve the king: and his throne is upholden by mercy.

王因仁慈和诚实，得以保全他的国位，也因仁慈立稳。

4·For the first, the state must use all means necessary to preserve key industries: ie, give carmakers billions of euros.

第一个人认为，国家必须动用“所有必要的手段”来保全重点产业，比如，拨款数十亿欧元给汽车厂商。

5·Mr Yang, in his zeal to preserve the company he started, must now take care not to demolish it by accident.

对于迫切希望保全公司的杨先生来说，他必须小心防止意外的发生。

保藏

1·I like to make puree, using only enough sugar to preserve the plums.

我喜欢做果酱，只用足够的糖来保藏李子。《柯林斯英汉双解大词典》

2·In hot weather it is rather difficult to preserve food and keep it fresh and safe to eat.

热天很难保藏食品，使之保持新鲜与食用安全。

3·Combined with predictive microbiological technology and HACCP, the hurdle technology can make the traditional meat products much easier to preserve.

在栅栏技术的基础上结合微生物预测技术和H ACCP技术使传统肉制品更易于保藏。

4·Salt and spices help to preserve meat.

盐和调味品有助于保藏肉类。

5·Clean, it appears that simple word, it contains a number of precious truth, and preserve the purity of the number of quality people, it is a forever in our hearts the beautiful shining star!

廉洁，看来简简单单的两个字，却蕴涵了多少珍贵的真理，保藏了多少人的纯洁品质，更是一个永远在我们心中闪耀着的美丽星光！

留存

1·Because of longer life spans, Americans are also boosting their savings to preserve their nest eggs, the TD Ameritrade study showed, which surveyed 2,000 adults between 40 to 79.

德美利证券公司的该项研究调查了2000名40至79岁的成人，研究表明，由于寿命延长，美国人也在增加储蓄以留存养老储备金。

2·Low oxygen and low pH levels may have helped preserve the soft tissue, the team reports in a paper published this week in the Journal of Crustacean Biology.

低氧低酸碱度的环境可能对软组织的留存有所帮助，研究组在这周的《甲壳生物》里这样报道。

3·When testing is over, the testing center will preserve some samples for future reference.

检验结束后，我中心将留存部分样品备查。

保存下来

1·A spokesman for the Health Protection Agency said: Antibiotics are a precious resource in fighting infections and one that we must do everything possible to preserve.

英国健康保护署发言人说：“抗生素是对付传染病的宝贵资源，是我们必须尽一切可能保存下来的资源。”

(1)preserve food保藏食物