His first trial ended in a hung jury.

他第一次出庭受审以陪审团未能作出裁定而告终。

《柯林斯英汉双解大词典》

This is my first trial.

这是我第一次受审。

youdao

I don't want them to suspect this is my first trial.

我不想让他们怀疑这是我第一次参与审讯。

youdao

He heads the first-ever clinical trial of umbilical cord stem cells with cerebral palsy patients.

VOA: special.2011.02.01

My first book was on the trial of John Peter Zenger, 5 which was the first famous case in America in 1735 relating to freedom of speech.

我首本书写的就是John，Peter，Zenger审判，这个案例在1785年的美国家喻户晓5,是言论自由方面的第一个例子。

普林斯顿公开课 - 人性课程节选

The trial has been hailed as the world's first successful AIDS vaccine trial.

VOA: standard.2009.10.20

The first trial of the system begins on 29 April in Ashton-Under-Lyne, Greater Manchester.

BBC: Universal Credit: MPs raise fraud concerns

On October 27th an overhead rail line for commuters made its first trial run.

ECONOMIST: How much should you bet on Thailand?

This was his first trial, but the case had already consumed almost five of his thirty-five years.

NEWYORKER: A Dirty Business