A:We’ve got to be in Philadelphiaby by Saturday.
我们周六前会抵达费城.
We could take the train.
我们可以坐火车.
But we’ll have to change a few times.
但中途要转车好几次.
B:A direct flight would be a lot less complicated and maybe even cheaper.
直飞的航班会简便很多并且或许更便宜.