not for lack of trying
成語所屬單字lack
not for lack of trying — 慣用語
1. used to say that although someone has not achieved something, it is not because
1.慣用語
釋義
並非努力不夠（指雖然未成功，但已盡力）
used to say that although someone has not achieved something, it is not because they did not make enough effort
例句
The team did not win the championship, but it was not for lack of trying — they trained every day for six months.