n.过度拥挤；挤满
动词overcrowd的过去式和过去分词.
Overcrowding imposes mental strains. 过度拥挤使精神紧张。
Overcrowding and poor sanitary conditions led to disease in the refugee camps. 过度拥挤和恶劣的卫生状况导致难民营中出现疾病。
