### 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 products or has time limit. It is recommended to choose Shunfeng Express, and it is recommended to pay on arrival. SF Express is relatively guaranteed, and payment will be made after the freight is modified.
### Errors: There is a major error at "has time limit". There is a major error at "Shunfeng Express". There is a major error at "SF Express". There is a major error at "guaranteed". There is a major error at "will". There is a major error at "made". There is a major error at "the freight is modified".

### 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.