trial on

Kevin-san, Thank you for your answer.
I'm not good at listening/speaking, so recently(within a week) I'd try to record TED talk by speed rate 0.75 and hear it in spare time and in bed.

And we also help give them back the power of decision by instigating curiosity on alternative livelihoods that they can try on.

try on
= to use or test experimentally

The speaker has her own accent. It is not so heavy, but we might miss a few unstressed words. This is natural. We do not have to hear every single word in order to understand.

This is not a piece of advice to you I'm talking to myself for my practice of writing skills.
in weblio dictionary the definition of trial have not verb but in the GT's definition is. my question have solved.
:trial WD
https://ejje.weblio.jp/content/trial
:trial GT
https://translate.google.co.jp/?hl=ja&sl=en&tl=ja&text=trial&op=translate