prove/certify/confirm/demonstrate/testify.导航词义：证实，证明

1. prove:v. 证明.普通用词，指以事实等证明某事是真实的。

Tests have proved that the method works.

实验证明该方法有效。

How can you prove that he has cheated in the exam?

你如何证明他在考试中作弊了？

2. certify:v. 证实，证明.尤指经过某种检验而证实某事正确或真实。

The accounts of that company were certified by the investigators.

那家公司的账目经调查员核实过。

She had to show the paper to certify that she was in good health.

她得出示她的健康证明。

3. confirm:v. 证实，证明.指通过更多的证据确定某事是真实的。

They need new evidence to confirm his story.

他们需要新的证据来证实他的说法。

To confirm her conjecture, she has to do some tests.

为了证实她的猜测，她需要做一些试验。

4. demonstrate:v. 证明，证实.指清楚地论证或证实某事。

His study demonstrates the link between sleep quality and work performance.

他的研究证明了睡眠质量和工作表现之间的联系。

You have to demonstrate that you are reliable.

你得证明自己是靠得住的。

5. testify:v. 证明，证实.指清楚地说明某种情况，常后接介词 to。

Skyrocketing prices testify to the depth of the inflation.

飞涨的物价说明了通货膨胀的严重程度。

The waste paper and cigarette ends that can be seen everywhere testify that littering hasn't been stubbed out.

随处可见的废纸、烟头说明乱扔杂物的习惯并未得到根除。

全部

1·Fiers promised to testify fully and truthfully.

菲尔斯承诺毫无保留地、如实地作证。《柯林斯英汉双解大词典》

2·He was summoned to testify before a grand jury.

他被传唤出庭在大陪审团前作证。《牛津词典》

3·She was held in contempt for refusing to testify.

她因拒绝作证而被判藐视法庭罪。《牛津词典》

4·There are several witnesses who will testify for the defence.

有几名证人愿意为被告作证。《牛津词典》

5·She refused to testify, unless the murder charge against her was dropped.

她拒绝作证，除非取消她的谋杀指控。《柯林斯英汉双解大词典》

6·In the next three or four days, eleven witnesses will be called to testify.

在随后的三四天里，11名证人将传唤来作证。《柯林斯英汉双解大词典》

7·Too many young people are unable to write or spell well, as employers will testify.

写作或拼写不好的年轻人太多了，这一点雇主都会证明。《牛津词典》

8·Several researchers write, speak and testify quite a lot on the threat posed by violence in the media.

几位研究人员就媒体暴力所造成的威胁进行了大量的写作、发言和证实。

9·Any veteran nicotine addict will testify that fancy packaging plays no role in the decision to keep smoking.

任何一个尼古丁成瘾的老烟民都能作证，花哨的包装对是否继续吸烟的决定没有任何影响。

10·Hundreds of others are more obscure in their meanings and testify to the amazing specialization in medieval arts, crafts and functions.

其他成百上千的词在含义上更加模糊，证明了中世纪艺术、工艺和功能的惊人专业化。

作证

1·Fiers promised to testify fully and truthfully.

菲尔斯承诺毫无保留地、如实地作证。《柯林斯英汉双解大词典》

2·She was held in contempt for refusing to testify.

她因拒绝作证而被判藐视法庭罪。《牛津词典》

3·There are several witnesses who will testify for the defence.

有几名证人愿意为被告作证。《牛津词典》

4·She refused to testify, unless the murder charge against her was dropped.

她拒绝作证，除非取消她的谋杀指控。《柯林斯英汉双解大词典》

5·In the next three or four days, eleven witnesses will be called to testify.

在随后的三四天里，11名证人将传唤来作证。《柯林斯英汉双解大词典》

证明

1·Too many young people are unable to write or spell well, as employers will testify.

写作或拼写不好的年轻人太多了，这一点雇主都会证明。《牛津词典》

2·As recent graduates can testify, the job market isn't kind to candidates who can't demonstrate genuine competence, along with a well-cultivated willingness to work hard.

最近的毕业生可以证明，求职市场对不能表现出真正能力以及良好的努力工作意愿的求职者并不友好。

3·Auroras, such as the one pictured above, pleasingly testify to a stream of particles from the sun that gets through and hits the atmosphere.

就像上面图片中展示的那样，极光以一种令人愉快的方式证明了存在一股来自于太阳的物质颗粒流穿过并撞击大气层。

4·Increasingly, as I can testify, his generation even resorts to political policing and legal injunctions.

我可以证明，他这一代的人越来越借助于政策手段和法律控制了。

5·So you testify against yourselves that you are the descendants of those who murdered the prophets.

这就是你们自己证明，是杀害先知者的子孙了。

证实

1·Several researchers write, speak and testify quite a lot on the threat posed by violence in the media.

几位研究人员就媒体暴力所造成的威胁进行了大量的写作、发言和证实。

2·Anyone who has toiled through SAT will testify that test-taking skill also matters, whether it's knowing when to guess or what questions to skip.

任何一个曾经辛苦地经历过 SAT 考试的人都可以证实，应试技巧也很重要，即是否知道什么时候该猜测答案或者什么样的问题该跳过去。

3·As many women can testify, there's a fine line between pretty and scary when it comes to make-up.

化妆是漂亮还是吓人就在一线之间，这一点许多女人都能证实。

4·Yet, as anyone who has developed an Ajax application can testify, testing Ajax isn't exactly easy.

不过，像任何一个开发过 Ajax 应用程序的人证实的一样， 对 Ajax 执行测试真的很不方便。

5·He said he would summon officials to testify in parliament.

他说将召集有关官员在国会上证实此事。

指证

1·7the world cannot hate you, but it hates me because I testify that what it does is evil.

世人不能恨你们，却是恨我，因为我指证他们所做的事是恶的。

2·The world cannot hate you, but it hates me because I testify that what it does is evil.

世人不能恨你们、却是恨我。因为我指证他们所作的事是恶的。

3·Civil-union partners also now have the right not to testify against a partner in state court.

获得民事关系的伴侣如今也获得同样的权利，不需要在该州法庭上指证对其伴侣不利的证词。

(1)testify against作对…不利的证明