We promise to deliver within 48 hours.

我们承诺在48小时内送到。

《牛津词典》

We promise to deliver to your door within 48 hours of you ordering.

我们承诺在接到订单后48小时内送货上门。

《牛津词典》

These symptoms also resolve spontaneously, usually within 48 hours.

这些症状通常在48小时之内也可以自行消退。

youdao

Iraq's Electoral Commission, which is overseeing the vote count, says that results should be announced within 36 to 48 hours, barring unforeseen complications.

VOA: standard.2009.07.26

We contacted Deputy Attorney General Eric Holder within 48 hours after Ms. Tripp provided us information.

CNN: Transcript: Judiciary Committee impeachment hearing

It says its petition was distributed to parents on Monday, with 11, 000 signing within 48 hours.

BBC: Huge and angry response to childcare plans, says charity

Selebi, an ex-Interpol president, was supposed to report to serve his 15-year sentence within 48 hours.

BBC: South Africa ex-police chief Jackie Selebi loses appeal