demonstrate
单词辨析：
指演示如何做某事或某事的工作原理；也可指表露出某种感情、能力或素质，作此义解时常可与 display 换用。
He demonstrated how the new device works.
他演示了新装置是如何工作的。
She has demonstrated/displayed an ability to win the competition.
她展示了赢得竞赛的能力。
常指将某物摆放在显眼之处；也指显露某种感情、态度或特质。
A newly unearthed bronze statue is displayed in the centre of the hall.
一座新出土的青铜雕像被放在大厅中央展示。
The latest statistics will be displayed on the billboard.
最新的数据将发布在布告板上。
She displayed great interest when visiting the museum.
参观博物馆的时候，她表现出很感兴趣的样子。
指有意或无意地把东西给别人看，也指通过示范教某人做某事。
Show your ID card to the police.
给警察看看你的身份证。
The man grinned, showing his white teeth.
那个人咧着嘴笑，露出一口白牙。
Please show me how to make spaghetti.
请教我做意大利面。
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？
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。
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。
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。
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。
相关例句：
The government's going to great lengths to demonstrate its military might.
该政府正不遗余力地展示其军事力量。
The best and the brightest pupils competed to demonstrate their intellectual prowess.
最出色、最聪明的学生们竞相展示他们的才智。
Let me demonstrate this car to you.
让我先给你们操演一下如何驾驶这部车子。
These cultural relics demonstrate the great intelligence of the labouring people of ancient china.
这些文物显示出中国古代劳动人民的高度智慧。
The study also demonstrated a direct link between obesity and mortality
该研究还表明了肥胖症和死亡率之间存在直接的联系。
Thousands of people demonstrated outside the parliament building.
数千人在议会大楼前示威。