dogged

His dogged efforts finally brought the old garden back. ▶

他坚持不懈的努力终于让老花园恢复了生机。

Dogged determination enables many researchers to continue investigating important questions despite repeated failures and limited funding.

顽强的决心让许多研究人员在屡次失败、经费有限的情况下仍能继续探索重要问题。