time capsule

1. N a container holding articles, documents, etc, representative of the current age, buried in the earth or in the foundations of a new building for discovery in the future 時(shí)空膠囊; 內(nèi)存具有時(shí)代特征的文章、文件等的密藏容器，埋在地下或新建建築物地基下供後人發(fā)現(xiàn)竝了解現(xiàn)代情況