他在乡下休养了一个月后完全恢复了健康。

After a month of rest in the countryside, he fully recuperated from his illness.

recuperated 是动词 recuperate 的过去式，recuperate 来自拉丁语 recuperare（重新获得），由 re-（重新）和 capere（拿取）组成，意思是"恢复健康"或"康复"。