How to say “The instructor lined the tools up on the demonstration table and demonstrated each one, slowly.” in Japanese
In Japanese
指導員は道具を実演台に並べて、一つずつ使い方をゆっくり実演してくれた。
Shidōin wa dōgu o jitsuendai ni narabete, hitotsu zutsu tsukaikata o yukkuri jitsuen shite kureta.