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1·On the other hand, alternative fuels do have drawbacks.

另一方面，替代燃料确实也有缺点。

2·Using alternative fuels and improving energy efficiency is thus both an ecological necessity and a technological challenge.

因此，使用替代燃料和提高能源效率既是生态需要，也是技术挑战。

3·Customers can bring shoes of any brand into an Adidas store to be shredded and turned into alternative fuels for energy creation instead of being burned as trash.

顾客可以把任何品牌的鞋子带进阿迪达斯店，将其粉碎制成可替代能源，而不是当成垃圾烧掉。

4·Use of alternative fuels like ethanol has also grown.

可替代燃料如乙醇的使用增多。

5·BMW also has a checkered past with alternative fuels.

宝马在可替代能源方面也有一段曲折的过去。

6·It could have designed new cars or researched alternative fuels.

它或许用这笔钱设计新车，或者研发可替代燃料。

7·Gaseous fuels are considered as clear alternative fuels for vehicle.

气体燃料被认为是很有前途的车用低污染代用燃料。

8·Alternative fuels — Unconventional fuels such as ethanol and methanol.

可替代燃料——非常规燃料，比如乙醇和甲烷。

9·The problem of alternative fuels of vehicle is one problem we shall approach.

车辆的代用燃料是我们将要着手处理的一个问题。

10·Policy should encourage energy efficiency and support research into alternative fuels.

政策应该鼓励提高能源使用效率并支持可替代燃料的研发。