煤炭实际上比煤气便宜。
随着新的技术进步和大规模生产,预计成本的下降将使风力发电成为世界上最便宜的发电方式之一。
With new technological advances and mass production, projected cost declines should make wind power one of the world's cheapest ways to produce electricity.
我的意思是,它实际上是一所公立学校。所以对住在这个州的人来说,学费很便宜。
I mean, it's actually a state school. So it's very inexpensive for the people who live in the state.
We'll start in the east of London, which is traditionally the cheapest area of London.
我们将从伦敦东部开始,那是传统意义上最便宜的地区。
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