a device used for spreading or scattering a substance over a wide area 传播机;撒播器 ■a person who spreads or disseminates something 散布者;传播者 they were spreaders of terror. 他们是恐怖的传播者。 ■a plant that grows over a wide area 分布很广的植物 ■a bar attached to the mast of a yacht in order to spread the angle of the upper shrouds 纵向撑木