confirm
单词辨析：
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：
To confirm the diagnosis, the hospital laboratory must culture a colony of bacteria.
为进一步确诊，医院实验室必须培养一个细菌菌落。
You make the reservation, and I'll confirm it in writing.
你来预订，我会去函确认。
We will always confirm the revised amount to you in writing before debiting your account.
在记入您账户的借方之前，我们总是会就发生变动的数额书面通知您。
This confirms what I suspected all along.
这证实了我一直以来的怀疑。
The spokesman confirmed that the area was now in rebel hands
这位发言人证实该地区现已落入叛乱分子手中。
When I confirm definitive plans here, I will provide an update.
当我在这里证实了明确的计划，我会提供了一个更新。