将饵在水面轻轻地上下拉动
Dib \Dib\, v. i. To dip. [Prov. Eng.] --Walton. Dib \Dib\, n. 1. One of the small bones in the knee joints of sheep uniting the bones above and below the joints. 2. pl. A child's game, played with dib bones.
DIB {device independent bitmap}