to open; to unroll; to spread out (a book, scroll, etc.)

The liver; large organ in the body that produces bile and cleans the blood; also called 肝脏 gān​zàng.

(literary) to show one's utmost loyalty or sincerity; literally to pour out one's gallbladder; often used in the idiom 披肝沥胆 pī​gān​lì​dǎn