To ensure rapid and stable freight transport, using the latest Korean Air cargo Boeing 747-400f, reduce fuel costs and by improving the quality of management to meet customer needs.

为保证货运运输的迅速和稳定，大韩航空采用最新货机波音747 - 400f，减少燃料费用，并通过完善的品质管理来满足客户的需求。

youdao

Most famous of these, of course is Air Force One, the official jet transport -- though actually there are two Air Force Ones, both modified Boeing 747-400s -- of the President of the United States of America.

CNN: Luxury living at 35,000 ft