### Chinese: 2.买家急需产品或有时效限制，建议选择顺风快递，建议到付，顺丰相对有所保证，修改运费后再付款。
### English: 2. The buyer is in urgent need of the product or has time limit. It is recommended to choose Shunfeng Express, and it is recommended to pay on arrival. SF is relatively guaranteed, and the freight will be modified before paying.
### Errors: There is a major error at "has time limit". There is a major error at "Shunfeng Express". There is a major error at "recommended". There is a major error at "SF". There is a major error at "ly guaranteed". There is a major error at "the freight will be modified before paying".

### Improved English: 2. It is recommended to choose SF-express delivery with payment upon arrival for buyers who need the products urgently or need to receive it within a time range; SF is relatively secure and you may pay after the shipping fee is edited.