。
She squeezed juice out of a whole lot of oranges.
Literal
She [topic-は] a-lot [genitive-の] oranges [from-から] juice [object-を] squeezed-out.
絞り取る is a 複合動詞 (compound verb) built from 絞る ('squeeze, wring') + 取る ('take'), giving a tight-knit verb meaning 'extract by squeezing.' Compound verbs of this shape are productive in Japanese — 取る often pairs with verbs of action to mean 'completing the action by getting what's extracted' (受け取る 'receive,' 切り取る 'cut off,' 読み取る 'read off'). から marks the source ('from'), distinct from を which would mark the oranges as direct objects of squeezing (絞る itself does take を, but 絞り取る pairs source-から with target-を to track what's coming from where).