求翻译：毕业后我在一家培训机构从事了3年的销售工作，主要开发新客户，与客户建立良好的关系，推广和销售高品质的企业人才培训服务，完成销售目标。是什么意思？

After graduation I engaged in a training institution for three years of sales, mainly to develop new customers, establish a good relationship with customers, market and sell high-quality corporate training services, to achieve sales goals.

After graduation I in a training institutions to engage in a three-year sales, with the main development of new customers, establish a good relationship with customers, marketing and sales of high-quality enterprise training services, completed sales goals.

After the graduation I trained the organization in one to be engaged in 3 year sales work, mainly developed the new customer, with the customer establishment good relations, promoted and sells the high quality the enterprise training service, achieved the sales goal.

After graduation, I was in a training institution engaged in 3 years of sales, mainly develop new customers, establish a good relationship with customers, market and sell high quality business training services, achieve sales goals.

I am engaged in sale in 3 in a training organization after graduating, mainly develop the new customer, establish good relation with the customer, popularize and sell the high-quality training service of talent of enterprise, finish selling the goal.