Usage patterns
〈物〉のトライアルを行うto carry out a trial (of something)
It was decided that a trial of the new system would be carried out.
トライアル版を試すto try out a trial version (of software, a product, etc.)
I decided to buy it after trying the free trial version.
トライアルに参加するto take part in a tryout or trial
He took part in the soccer team's tryout.
トライアル期間trial period
This service has a one-month trial period.