从那时起生产就一直没有过。的翻译：Since then production has not seen any retrogression. 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

Since then production has not been back on too.

Since then production has not seen any retrogression.

Since then produces has not backed up.

Since then there has been no decline in production.

Since then production has not seen any retrogression.