yùnfèixiǎn kěyǐ bǔ yī bùfèn tuìhuò yùnfèi dàn bù yīdìng fùgài quánbù yě bù yīdìng měi gè dìngdān dōu yǒu

运费险可以补一部分退货运费，但不一定覆盖全部，也不一定每个订单都有。

Shipping insurance can cover a portion of the return shipping costs, but it may not cover everything, and not every order has it.