短語詞組短語claw -back provision 抓回條款Reverse Claw Back 逆向彌補性收入Claw Back That 彌補性claw back mechanism 回補機制big back claw 利爪背部抓擊;利爪違部抓擊big g back claw 利爪背部抓擊 返回 claw back