1. | ~ sth （通过广告等）提前促销（尤指未上市的产品、服务等）to help sell a product, service, etc., especially one that is not yet available, by using advertising and other techniques to attract consumers' attention |
Putting a trial version on your website is a great way of preselling your product. 将试用版放到网站上是一种很好的提前促销产品的方式。 |
2. | ~ sth 预售to sell sth in advance of when it is available |
These farmers presell their crops. 这些农民预售他们的作物。 |
