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压路机,慢吞吞,走路推着大铁磙(ǔn)。平时路上看不到,遇上修路它最忙。压路机@张爱芳$安徽水利厅机关幼儿园
Roller, slow, walking push big iron 磙 (ǔ n). Usually can not see the road, it is the busiest road repair. Road roller @ Zhang Aifang $ Anhui Department of Water Authority kindergarten