не мог сдержать

couldn't hold back

→ не
phrase Rare #24,607
couldn't hold back Used with feelings, laughter, tears, anger, a smile, etc. Often followed by a noun in the genitive case.
RU: Он не мог сдержать улыбки.
EN: He couldn't hold back a smile.

Боб не мог сдержать чувства.

Bob couldn't contain his feelings.

Том не мог сдержать улыбки.

Tom couldn't help but smile.

Боб не мог сдержать свой гнев.

Bob couldn't contain his anger.

Я не мог сдержать смех, когда увидел его.

I couldn't help but laugh when I saw him.

Я не мог сдержать смеха от его шуток.

I couldn't help but laugh at his jokes.