dot1/dɑt; dɒt/n 1 [C] a small round mark or spot 小圆点﹐点: a pattern of dots on the screen 屏幕上由点组成的图案The plane shrank to a black dot in the sky. 飞机在空中越变越小﹐成了一个黑点。2 on the dotinformal exactly at a particular time【非正式】准时﹐分秒不差: at three o’clock/seven thirty etc on the dot He arrived at six on the dot. 他六点准时到达。
dot2v [T] dotted , dotting 1 to mark something by putting a dot on it 在…上加点2 to spread things out within an area 分布﹐密布: be dotted with sth The lake was dotted with sailboats. 湖面上帆影点点。