apply (oneself) to

Translations
приложить усилия к
She applied herself to her studies and improved her grades.
Она приложила усилия к учебе и улучшила свои оценки.
Definitions
To dedicate one's efforts, attention, or skills to a particular task, study, or activity.
Words
apply

verb
применять
oneself

pronoun
себя
to

preposition
к