/ˈəʊvərɔːl; NAmEˈoʊ-/ [] () a loose coat worn over other clothes to protect them from dirt, etc外套；罩衣◆All laboratory staff must wear a white overall at all times.所有实验室工作人员所有时间都必须穿白罩衣。overalls () (NAmEˈcoveralls) [] a loose piece of clothing like a shirt and trousers/pants in one piece, made of heavy fabric and usually worn over other clothing by workers doing dirty work工作套装◆The mechanic was wearing a pair of blue overalls.机修工穿了一身蓝色工作套装。