a user study?标准翻译

a user study?标准翻译 求翻译“A second study” 翻译a study of studies 是a user还是 an user?为什么? 用户界面（user interface)怎么翻译? user does not exists翻译 翻译:backup user data.还有一个:restore user data user study翻译 Die in a user created level的所有意思,要正确.谢谢百度翻译那个看不懂. already a ubi.com user? 英语翻译翻译Study like a dog play like a gentalman! SAP Notes that are assigned to you as a user.这句话怎么翻译,句子成分是什么,that在这里是什么意思? why should you make a study pian in your English study翻译过来是什么意思 a study user-generated 什么意思?如题.在这段话里：A blog is a user-generated website where entries are made in journal style and displayed in a reverse chronological order.最好翻译一下这句话什么意思 翻译：I study by working with a group. Is there a computer in your study? 的翻译