make mistakes 犯错,出错 later on 以后,随后 it doesn`t matter 重要,要紧,有关系 be afraid to 害怕去做,不敢去做 laugh at 嘲笑,取笑 take notes 做笔记,做记录 look up (在词典、参考书等中)查阅,查找 make up 编造,组成,拼凑成 deal with 处理,应付 be angry with 生……的气,对……感到气愤 go by (只是)过去,消逝 try one`s best 尽力做…… break off 突然中止,中断