有勞各位英文高手幫我把以下的句子由中文翻譯成英文！

由中文翻譯成英文:

All information will be on the 1st of each month and on the 16th of the e-mail sent to the guests.
We started with the old issue of renewal of the guests.
We will use six different methods to promote the promotion of company's products.
We will also use the word-of-mouth promotion of our products.
Through mutual customers, the use of "recommended" the spread, and is a very effective way of publicity.
Customers are the same as the identity of users to speak, the more convincing. General nor the effectiveness of advertising and customer's recommendation.
Therefore, we must establish a good corporate and product image.
We need to calculate the new product rate of return on investment will enable us to know whether the product is worthy of investment or the need to raise product prices.

All materials 1 and 16 will send in each month by the email way for the concerned visitor.
We start to deal with the old guest person's supplementary contract issue.
We will use 6 kind of different promoted method promotion company's product.
We also using the oral traditions promotion company product.
Introduced mutually through the customer, makes good use of “the recommendation” the dissemination strength, is a very effective propaganda way.
Because the customer is similarly by uses family's identity speech, compared with has the persuasive power. Generally advertisement effectiveness is also inferior to customer's recommendation.
Therefore, we must establish a good company and the product image.
We need to calculate the new product the investment rate of return, lets us know whether this product is worth investing or whether needs to raise the product price.