language learning materials

• 语言学习材料

language learning materials的用法和样例：

例句

1. Database analysis of a very good learning materials can be downloaded in need Oh!
   数据库分析一个很好的学习材料，需要的可以下载哦！
2. Armed with the right materials for studying, we embark on the goal of learning NEC.
   手里有了合适的学习材料，我们高兴地开始学习新概念英语。