decrease/diminish/lessen/reduce.导航词义：减少，降低

1. decrease:v. （使）减少，（使）变小.指变少或降低水平。

The local government has adopted effective measures to decrease unemployment.

当地政府已经采取有效措施减少失业人数。

Her temperature decreased.

她的体温下降了。

2. diminish:v. （使）减小，（使）降低.指大小、数量不断减小，也可引申为贬低某事物的重要性或价值。

The company planned to diminish the cost of production.

公司计划减少生产成本。

Water in the pond gradually diminished due to lack of rainfall.

由于缺少降雨，池塘里的水逐渐减少。

His comments were only said to diminish the importance of her discoveries.

他的评论就是为了贬低她的发现的重要性。

3. lessen:v. （使）变小，（使）减少.指程度、规模等减少，也可指降低某事物的可能性、影响等。

Her anxiety lessened while listening to the music.

听音乐的时候，她的焦虑减轻了。

Exercise lessens the risk of heart disease.

进行锻炼可降低患心脏病的风险。

The program has lessened the effects of car pollution.

该计划降低了汽车污染的影响。

4. reduce:v. 减少，减小.指降低价格、数量、规模等。

We should take measures to reduce the price.

我们应该采取各种措施来降低物价。

A plan to reduce crime was announced recently.

最近宣布了一项降低犯罪率的计划。

全部

1·Federalism is intended to diminish the power of the central state.

联邦制度旨在削弱中央政府的权力。《柯林斯英汉双解大词典》

2·Deserts in sub-Saharan Africa will diminish gradually.

撒哈拉以南非洲的沙漠将逐渐减少。

3·In zones of increased turbulence, the planes' wakes will decay more quickly and the effect will diminish.

在湍流增强的区域，飞机的尾流会消失得更快，它的效果也会减弱。

4·Conversely, teachers who have a tendency to overdirect can diminish their gifted pupils' learning autonomy.

相反，有“过度指导”倾向的教师会削弱天才学生的学习自主性。

5·Nevertheless, Gerteis argues, these disparate party affiliations did not diminish the actuality of reformer unity, most prominent in the 1830s.

然而，格泰斯认为，这些不同的政党联盟并没有削弱改革者团结的现状，尤其是在19世纪30年代。

6·Have trust and let your teen know that you trust him. But if he lives up to your trust, his freedom will diminish until you can trust him again.

要有信任，让你十几岁的孩子知道你信任他。但是如果他辜负了你的信任，他的自由就要减少，直到你可以重新信任他。

7·These measures will help us diminish military risk, act before crises and conflicts erupt, and ensure that governments are better able to serve their people.

这些措施将有助于我们减少军事风险、在危机和冲突爆发之前有所行动，并确保政府能够更好地服务于它们的人民。

8·I don't wish to diminish the importance of their contribution.

我并不想贬低他们所作贡献的重要性。《牛津词典》

9·The evidence suggests that our sense of touch is programmed to diminish with age.

该证据表明我们的触觉会随着年龄的增长而逐渐变弱。《柯林斯英汉双解大词典》

10·It can lead to workplace dysfunction and diminish their own job satisfaction.

这可能导致工作场所运行失衡，还会使他们自己的工作满意度降低。

减少

1·Have trust and let your teen know that you trust him. But if he lives up to your trust, his freedom will diminish until you can trust him again.

要有信任，让你十几岁的孩子知道你信任他。但是如果他辜负了你的信任，他的自由就要减少，直到你可以重新信任他。

2·These measures will help us diminish military risk, act before crises and conflicts erupt, and ensure that governments are better able to serve their people.

这些措施将有助于我们减少军事风险、在危机和冲突爆发之前有所行动，并确保政府能够更好地服务于它们的人民。

3·Since risks are associated with requirements, one way to remove risk is to remove or diminish the requirement with which the risk is associated.

由于风险是同需求相关联的，所以消除风险的一种方式就是移除或者减少同风险相关的需求。

4·Our commitment is not to diminish services.

我们的承诺是不减少服务。

5·Second, we struggle to change human behaviours in ways that protect health and diminish risks and dangers.

第二，我们努力改变人类的行为以保护健康并减少风险和威胁。

变小

1·As computers diminish in size and increase in portability, the need to interact with them without using a keyboard or mouse increases.

随着计算机尺寸的变小和便携性的提高，不使用键盘或鼠标来与之交互的需求也越来越强烈。

2·Eventually, it reaches a stable state in which it can't diminish any further.

它最终会达到一个稳定状态，不能再变小。

3·And now we're going to diminish that just a bit.

现在我们要把这个数字变小一些。

4·To diminish the large volume, the facility's massing is divided into three parts and united through the use of similar cladding materials and colours.

为了使大型体量变小，设施的体块分为三个部分，通过使用相似的包覆材料和统一的颜色达到这种效果。

5·From the viewpoint of economics, we can find that the influence of mid-long-term policy-related commodity houses on real-estate market will diminish and their supply will decrease.

从经济学角度分析可以得知中长期政策性商品房对房地产市场影响将变小，其供应量会减少。

缩小

1·The workforce will continue to diminish, or move away from where it is most needed.

工作队伍将继续缩小，或远离对它最有需求的地方。

2·This further cheapens online content, makes visitors even less valuable, and continues to diminish the credibility of the medium.

这让网上目录更加贬值，让访问者更加没有价值，而且进一步缩小这个媒介的可信度。

3·These movements shall continue to diminish the pyramidal dream until it ceases to spin altogether.

这些运动将会继续缩小金字塔梦想，直到其完全停止转动为止。

4·Originally the composition of landscapes is not to paint a real picture as we see it, but to depict by means of a bird's eye view, namely, to diminish the subject matter in a nutshell.

原来山水画的构图，不是对景写实，而是用鸟瞰的方法，将真景缩小，然后加以描写的。

(1)diminish inflammation消炎