Apples can be a healthy snack or ingredient. However, it is not advisable to eat the seeds, as they contain small amounts of a chemical that produces cyanide, which is highly toxic. Eating one or two apple seeds by accident, or drinking juice that contains a few pulverized seeds, is unlikely to cause problems.
俄羅斯大叔也許根本就不知道這個知識點。很奇怪嗎?