脂肪酸的合成:看看这句话有没有语法错误,在线等!!!

来源:百度文库 编辑:神马品牌网 时间:2024/04/28 05:03:54
I having been in university for half past two years

I have been (studying) in the unviersity for two and a half years.

half past two years,用法不好,这个用法多发生在时间就是表上,象我楼上的最后面的用法才妥善一些