这几天早晨在大街小巷走走,常常会聞到一陣陣扑鼻的甜香。留神看看,原来那香味是从路旁一个热腾腾的小攤,或是从誰家开着窗的热霧弥漫的厨房里飄散出来的,那兒正在烤甘薯或是煮甘薯。甘薯,北京人的叫白薯;上海叫它山芋。它又有番薯、紅薯、甜薯等称呼。但这都是它的字或号,它的学名是甘薯。 Walking around the streets in the past few days, I often smell sweet and fragrant waves. Take a look and see if the scent is from a hot stall beside the road, or from a hot-filled kitchen where someone is opening the window, where sweet potatoes are baked or sweet potatoes are cooked. Sweet potato, Beijing’s called sweet potato; Shanghai called it hawthorn. It is also called sweet potato, sweet potato, sweet potato and so on. But this is its word or number. Its scientific name is sweet potato.