By taking major-related part-time jobs, students can not only improve their academic studies, but also gain much experience, experience that they will never get from the textbook.
多用于口语 因为外国人说话在说完第一个experience完了以后停顿了一段时间，为了说明that是修饰experience的 所以这样说。如果是作文建议保险的改为如下： but also gain much experience that will never be seen in the textbook. 理由（that后面作为限定性定语从句；用被动语态是为了避免用they，因为they指代不清，可能指代students也可能指代 academic studies ）...
很漂亮可惜有语病。experience that they will never get from the textbook中that必须改为what.,并且必须在experience前面加上and从而使并列的动词gain与experience连接起来。这是一个宾语从句，其中get 缺乏宾语。that引导宾语从句不作成分也没有意义译不出来。可是你这个...
有点罗嗦，后一个experience可以用定语从句修饰，以免重复，后一个experience改为which，比较好，非限定定语从句，By taking major-related part-time jobs, students can not only improve their academic studies, but also gain much e...
