法官正在准备进行审判。

The judge is preparing for the ___trial.

你可以先试用这个应用一周，看看是否喜欢。

You can take a one-week ___trial of this app to see if you like it.

经过多次尝试，他终于学会了弹吉他。

After many ___trials, he finally learned to play the guitar.

他在游泳选拔赛中表现出色，成功入选校队。

He performed well in the swimming ___trials and made the school team.