### 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 a time limit. We suggest you choose Shunfeng Express delivery. It is recommended to pay on delivery as Shunfeng Express is relatively guaranteed. You can pay after modifying the shipping fee.
### Errors: There is a major error at "Shu". There is a major error at "feng Express". There is a major error at "feng Express". There is a major error at "guaranteed". There is a major error at "modifying". There is a major error at "fee".

### 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.