一个有趣的例子来自近期一组人员建模一个商业航行器。
An entertaining example comes from a recent class exercise where a group modeled a commercial aircraft.
不管军事和商业航行，都是出于利益算计，从来没有开阔视野的探险之行。
Voyages, whether military or commercial, were undertaken in a spirit of ruthless calculation, not open-hearted adventure.
拖延三年之后，波音梦幻客机最终起飞，开始了其首次商业航行。
Boeing's Dreamliner has finally taken off on its maiden commercial voyage, three years later than planned.
应用推荐