词汇	sapropelic clay
释义	sapropelic clay 腐泥黏土
随便看	underground artificial structure underground asphalt storage underground atmosphere underground activity underground adit underground aerial tramway underground air underground air channel underground air-conditioning underground air defense facilities underground airflow velocity underground airing tunnel underground air passage underground airport underground airraid shelter underground air raid shelter underground air-raid shelter underground air-raid shelter hotel underground air tunnel underground alignment underground antenna Underground ap Guangzhou Railway Station underground aqueduct underground automatic networking device underground auxiliary transportation