phrasal verbphr vBUYto buy a lot of something in order to keep it for when you need to use it later 囤积,贮存
on
I have to stock up on snacks for the party.
我得为派对备足点心。
Examples from the Corpus
stock up• The supermarkets are full of people stocking up for the New Year's holiday.• We always stock up on cheapcigarettes when we go to Holland.• We might as well stock up while we're here - it'll save us having to come back.