twenty to one,a quartei to one,ten to one,ten past one.

问题描述:

twenty to one,a quartei to one,ten to one,ten past one.
单词还有剩下的3个,这7个单词的意思是什么?剩下的是:a quarter past one,twenty past one,haif past one

分别为:0点40分,0点45分,0点50分,1点10分,1点45分,1点20分,1点30分.0点等于12点.