day和says发音不一样。
day中的ay发/ei/音。类似发音的英语单词还有：may, cray, play, ray, pay, say, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, way, stay, lay, gay, player, relay, bay, hay, display, clay, always, gray, away, spray, pray, highway, railway等。says中的ay发/e/音，它与said中ai发音一样。
