million是百万的意思，billion是十亿的意思。

What would you do if you won a million pounds 你要是赢了一百万英镑，你想怎么用？A million is written with six noughts.一百万写出来有六个零。Today's battery breakthroughs come as the world looks to expand modern energy access to the billion or so people without it, while also cutting back on fuels that warm the planet.当今电池的突破出现在，这个世界试图让现代能源扩展到近十亿左右还未能接触到它的人们的时候，同时也可以减少导致全球变暖的石油的消费量。