to fall off or be eroded (of paint, plaster, or inscriptions)

to fall; to drop; to go down; (of the sun or moon) to set; (of a tide) to go out; to decline; to sink

to strip away or take by force; to exploit (as in 剥削 bō​xuē or 剥夺 bō​duó)

to fall behind; to fail to keep up with others