crowdn.人群；群众；大群；朋友v.拥挤；挤满；涌入；贴近；逼迫crowded cities拥挤的城市crowds control人群控制crowding tooth牙拥挤Crowd on speed加快速度crowd behavior群众行为crowd disaster群集事故crowd thin out人群逐渐散去crowd-pullern.吸引人群的人crowd assembly人群聚集crowded pinion小齿轮组