中文和英文有文化和习惯差异,请假条也是一样,如把中文的一句句的翻成英文,老外会觉得很奇怪,比如说"得到准许",外国学生从来不会这样说和写,一般都是应该叫告假条,就是告诉老师发生了什么情况,不会说请许可等官话,还要注意,这里郊游一定要用常用固定句field trip,而非travel之类的词.Dear Mr.Smith,I twisted my ankle yesterday afternoon when i played basketball.Doctor asked me to stay in bed.I am afraid i can go to the field trip this Saturday.Sorry for that.You know how much i want to be there.Please take more pictures and share the joy with me when you are back.Hope you have much fun! love LiHua