Up to date ,we have trained 1477 trainees in 2012.的翻译：Up to date ,we have trained 1477 trainees in 2012. 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

直至目前为止，我们已培训了1477名学员在2012年。

Up to date ,we have trained 1477 trainees in 2012.

Up to date, we have trained 1477 trainees in 2012.

Up to date ,we have trained 1477 trainees in 2012.