### 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. Buyers are in urgent need of products or there are time-limited restrictions. It is recommended to choose Shunfeng Express. <v>It is recommended to</v> pay on delivery. SF Express is relatively guaranteed. Payment will be made after 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.
