他的心情很差。他自从上个月以来一直这样的翻译：He is in a bad mood. He since last month has been 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

His bad mood. He has been this way since last month

He is in a bad mood. He since last month has been

His mood is very bad.He since previous month continuously like this

His mood is very poor. Since he had been doing since last month

He is in a bad mood. He since last month has been