:in a situation in which evidence against you is presented in a court to a judge and often a jury to decide if you are guilty of a crime受审
He is on trial [=being tried] for murder.他因涉嫌谋杀而受审。
She was on trial on charges of drug possession. = She went on trial for possession of drugs.她因持有毒品而受审。
— sometimes used figuratively有时用作比喻
The controversial case has put the entire health-care system on trial. [=has caused people to think about the health-care system in a critical way]这个备受争议的案件已经把整个医疗卫生系统推到了风口浪尖上。