### 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: The buyer has an urgent need for products or time-effective restrictions, it is recommended to choose a suitable express delivery, it is recommended to <v>pay</v>, the suitable goods are relatively guaranteed, and the shipping fee is changed after payment.

### 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.
