past怎么读,past是什么意思

unit 1 past and present vocabulary精品课件一(牛津
simple past tense (i). 1. then i arrived home at
the child couldn't count past 20. 这个孩子不会数20以上的数.
动词一般过去式(past_tense)课件ppt
learn lesson 1 2 grammar (past participle) lesson 4 补充阅读