Lucy gets "on the B" - the letter "B" - "bus to downtown and" shows her "bus pass to the bus driver."
露西乘“B”—字母“B”—“路公共汽车到市区，”她“向巴士司机出示了公车月票”6v0rr1U_XF+QKd@ES!。
Your bus pass is like your subway pass.
公车月票就像你的地铁通行证jI@B3&N]nU2gmhEa。
In this case, you show the pass to the driver; the driver looks at the pass to see that it is a good pass.
在这种情况下，你向司机出示公车月票；司机看一看公车月票，看月票是否有效!,g75jiF%m。
Lucy then sits "down near the front of the bus and three more people get on board."
然后，露西在“公交车的前面”坐了下来，“这时又有三个人上车”=mYD_|00e1xfKR0YWg。
On board, "board," means to be on a plane, or a train, or a bus, or a ship.
“On board”（board）指的是在飞机、火车、公共汽车或轮船上AF!OUAz!8W,Xp。
You may say, "I need to get on board my plane," that means you need to get onto your plane - you need to go into your plane.
你可能会说，“我需要上飞机，”这意味着你需要登上飞机——你需要进入飞机@!V,g+A4*#*sf。