到2012年底，成为一名出色的销售的翻译：By the end of 2012, becoming an outstanding sales 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 end of 2012, to become a good sales

By the end of 2012, becoming an outstanding sales

To 2012 year's end, becomes a splendid sale

By the end of 2012, to become an outstanding sales

By the end of 2012, becoming an outstanding sales