1.the day immediately before today;
it was in yesterday's newspapers
2.the recent past;
yesterday's solutions are not good enough
3.on the day preceding today;
yesterday the weather was beautiful
4.in the recent past; only a short time ago;
I was not born yesterday!
歌曲Yesterday由保罗·麦卡特尼(Paul McCartney)谱曲、作词,最早在披头士乐队 1965的专辑《Help》中出现。很多人认为词的作者是约翰·列农,其实从创作到录制,《Yesterday》都由保罗一个人完成。Yesterday是20世纪被改编、演奏、播放最多的一支乐曲。