trial
单词辨析：
指确定某事物是否有效或安全的试验过程。
The new method is still on trial now.
新办法目前还在试行中。
Which drug is undergoing clinical trials?
哪种药正在接受临床试验？
指用科学方法进行的实验，以验证某物在一定条件下的反应情况，或某一理论、结果等是否成立、属实。
The students are doing a chemical experiment.
学生们正在做化学实验。
The results of the experiment varied wildly.
实验结果差异很大。
Many people are against the idea of experiments on animals.
很多人反对在动物身上做试验。
普通用词，指对机器、产品等进行测试，以验证其性质、效能等。
A simple test will show if this is real gold.
一个简单的试验就能证明这是否是真金。
I hope that our new product will pass the test.
我希望我们的新产品能够通过测试。
Tests showed that the new battery lasted longer.
测试显示这种新电池续航时间更长。
相关例句：
In this trial two essential elements must be proven: motive and opportunity.
在这次审讯中，必须证明两个基本因素：动机和时机。
He denies 18 charges. The trial continues today
他否认了18项指控。审判今天继续。
I took the car out for a trial on the roads
我开车上路试驾了一下。
He has been riding in horse trials for less than a year.
他参加赛马选拔赛还不到一年。
This would be a very speedy trial
这将是一次十分迅速的审讯。
New evidence showed the police lied at the trial
新的证据表明警方在审讯时撒了谎。