10 What next

Chapter 10 What next? Today, there are more cars on the roads than ever. They use up lots of fuel and puff horrible fumes into the air.

第十章下一步是什么？今天，路上的汽车比以往任何时候都多。 它们消耗大量燃料，并向空气中喷出可怕的烟雾。

Now, engineers are inventing cars that won't pollute the air. They might run on energy from the sun... ...or give off water instead of nasty fumes.

现在，工程师们正在发明不会污染空气的汽车。 它们可能依靠太阳的能量运转。 …或者释放水而不是难闻的烟雾。

Tomorrow's cars will be all kinds of astonishing shapes. Some of them may even fly. Byeeee!

未来的汽车将是各种各样的惊人的形状。 其中一些甚至可以飞起来。 Byeeee !