trier
🇺🇸
/ˈtraɪər/
🇬🇧
/ˈtraɪə(r)/
A person who works hard and does their best to achieve something.
She is a trier, always giving her all in every task she undertakes.
彼女は一生懸命働く人であり、すべてのタスクに全力を尽くします。