OER
n. 光标记阅读机
例句
Other tools are unique to OER.
其它工具对oer是惟一的。
The actual costs of an OER project vary considerably.
OER项目的实际代价变化相当大。
OER directly involves the first two points of infrastructure and education.
OER直接牵涉到基础设施和教育这头两点。
