第七单元第一话题第五单元第一话题的翻译：Seventh releases first topic v first topic 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The first topic of the seventh unit of the first topic of the fifth unit

Seventh releases first topic v first topic

Seventh unit first topic fifth unit first topic

正在翻译，请等待...

Seventh releases first topic v first topic