on board

副词 on board:

1. on a ship, train, plane or other vehicle
   同义词：aboard, onboard

1. Be meals serve on board?
   机上有餐饮供应吗？
2. Many of the tourists on board had begun bargaining with the tradesman.
   船上的很多旅客开始与商人讨价还价了。
3. The hijackers kept the pilot on board the plane as (a) hostage.
   劫机者把飞机驾驶员扣留在飞机上作为人质。
4. We went on board Athens yesterday morning.
   我们昨天早晨登上雅典号。