NO.1包邮

=

free shipping

shipping=运输

I get that free shipping is important to the customer.

我知道免运费对客户很重要。

NO.2秒杀

=

seckill

second(秒)+kill(杀)

这是中国人创造的

也被歪果仁认可了

可以放心使用

Don't blink or you'll miss the seckill.

别眨眼，不然你会错过秒杀抢购的。

NO.3退款退货

refund/ˈriː.fʌnd/

=退款

return

=退货

I took the radio back to the shop and asked for a refund.

我把收音机拿回商店，让他们退款。

NO.4差评

=

negative comment

negative/ˈneɡ.ə.tɪv/

=负面的，消极的

I'll give a negative comment about the bad quality of these goods.

我要给这些质量很差的商品差评。