The company promises free, four-day delivery. That's pretty good.

公司承诺4天内免费送货，这已经很不错了。

youdao

The company promises free, four-day delivery.

这个公司承诺免费的，四天之内的送货。

youdao

Wal-Mart is still testing same-day delivery in four cities.

FORBES: Walmart Vs. Amazon: It's About To Get Interesting

From eastern Europe, by contrast, it is just four to six weeks, including a day or two for delivery by lorry.

ECONOMIST: Outsourcing in eastern Europe

People briefed on the project, which was two years in the making, say it was partly motivated by Amazon's success in offering two-day delivery, through its Amazon Prime, service and same-day delivery, which has been available for four years in some cities.

WSJ: Google Follows Amazon's Lead on New Shopping Site, Delivery, Other Services