get one's claws into

(informal)enter into a possessive relationship with

(非正式)占有，霸占

claw something back

regain a lost advantage or position laboriously and gradually

（奮力但緩慢地）重新獲得失去的優(yōu)勢(shì)或地位

clawing back power from the president.

從總統(tǒng)那里收回權(quán)力。