drain (someone's) strength

Translations
истощать (чью-то) силу
The long hours at work began to drain her strength.
Долгие часы на работе начали истощать её силу.
Definitions
To gradually reduce or exhaust someone's physical or mental energy, making them feel weak, tired, or less capable.
Words
drain

verb
истощать
someone

pronoun
кого-либо
s

article or possessive pronoun
чей-то
strength

noun
силу