有这样一道题 his first public show was at a school program in his

1。先举两个例子(英语原文上摘得）很显然你能明白为什么他从一年级就开始出现问题。Obviously you can see why hestarted to have problems in first grade。语言学院大约5%的学生在他们的一年级课程开始之前退学。About 5 percent of students in the language program flunk out before their freshman year。在英语的用法中一年级主要用 first grade或者 freshman year2。one主要是之“一个,一”意思 one的用法one day有一天；一天；某一天；有朝一日 （但你如果用first就不一样了first day就表示“第一天”了）One Street单行道；单行讲；单行；单言讲（如果你用first就不一样了,就表示第一街了）EG：Can you spare one of them for me? 你能把其中的一个匀给我吗?