n a serving of drink (usually alcoholic) drawn from a keg
n a large and hurried swallow
n a current of air (usually coming into a chimney or room or vehicle)
n the depth of a vessel's keel below the surface (especially when loaded)
n a dose of liquid medicine
n the act of moving a load by drawing or pulling
v make a blueprint of
n. 气流, 草稿, 汇票, 通风, 拉, 牵引
vt. 起草, 征兵, 选派