upset (someone's) applecart

Translations
расстроить планы (кого-то)
The unexpected rainstorm upset the applecart for our picnic.
Нежданный ливень расстроил наши планы на пикник.
Definitions
To disrupt or spoil someone's plans, arrangements, or progress, often unexpectedly or inconveniently.
Words
upset

verb
нарушить
someone

pronoun
кто-то
applecart

noun
планы