They were using a mechanical shovel to clear up the streets.他们用机械铲土机清理街道。Police in full riot gear attempted to clear the streets.配有全套防暴装备的警察试图清理街道。The plows came and cleared the streets, forming a hill of snow on the street corner.扫雪机过来清理街道，在街角堆起一个小雪堆。