I will travel by plane.

我将乘飞机旅行。

Millions of people travel by plane every single day.

每天都有数百万人乘飞机旅行。

However, there is a way of offsetting the carbon dioxide we produce when we travel by plane.

尽管如此，有一种可以消除我们乘飞机旅行产生二氧化碳的方法。

Did he travel by plane?

他是坐飞机旅行的吗？

I seldom travel by plane.

我很少坐飞机旅行。

She prefers to travel by tren rather than by plane.

她更喜欢乘火车旅行，而不是坐飞机。

If you travel by plane, you can save a lot of time.

如果你坐飞机，你可以节省很多时间。

I had always wanted to travel by plane to another country but I didn't have the opportunity until I was eleven years old.

我一直想乘飞机去另一个国家旅行，但直到我十一岁时才有机会。

I would rather travel by coach or by plane.

我宁愿坐长途客车或飞机旅行。

We can travel by plane, bus , train or car.

我们可以选择飞机、公共汽车、火车或者汽车。