翻譯以下句子，謝謝！

1. We also know that the old customers for the company's earnings. Old customer discount rate by the year of their terms, they and the longer the period, the higher the discount rate. , The discount rate will directly affect the company's earnings.
2. We recommend the use of areas of responsibility and work to measure the number of staff numbers. This allows us to effectively recruit the number of staff to avoid wastage of resources and increase cost.
3. In order to enhance sales of products, industry, service skills, marketing skills of understanding, we will arrange courses for business, to enhance their knowledge of all aspects of this website will be depending on the number of implementation of individual correspondence, or the opening of the award.
4. We have to develop a viable marketing and sales approach, which will help us to understand the effectiveness of the promotion. Market assessment is calculated the number of target audiences presence. Sales assessment is calculated sales performance.
5. We assess sales performance was mainly the use of sales and sales, two separate assessment of the benefits because there will be two different situations, such as price promotions to increase sales, but will reduce sales.

1. We have to know how much incomes are brought by our present customers. The discount rate for them should be calculated by the period of relationship established. The discout rate will affect our company's profit directly.

2. We suggest using the scope of work and workload as indicators for recruitment. This enables us to employ new staff effectivly in order to save cost and resources.

3. To enchance the performance, including knowledge of products and the industry, sales skills and customer service skills, of our sales colleagues, we will arrange training course for them. The training will be delivered individually by distance learning or in group by workshop, which denpends on how many person in need of training.

4. We have to established a practical system of reviewing our sales and marketing strategies to better understand the effectiveness of our promotion campaign. Marketing review will bases on the number of customer visited our shop, while Sales review on the performance of our sales team.

5. Sales figures, such as number of product sold and the amount of selling income, will be reviewed to evaluate the performace of our sales team. The merit of using 2 sets of figures is that different situations affect these 2 figures differently. For example, promotion by discount will boost the number of product sold but the selling income may be lower.