玉ねぎは日本では長らく鑑賞用でしたがコレラに効くとの嘘の噂で急速に広まりました(・・?) Onions have been used for viewing in Japan for a long time, but it spread rapidly due to false rumors that they are effective for cholera (・・?) 洋葱在日本长期用于观赏,但因为传闻说对霍乱有效,迅速扩散开来(...?)