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第2857期:We are electric
Episode 1
We're talking about electric cars. OK, Richard, so what exactly is an electric car? Well, simply, it's a car driven by an electric motor – a motor that runs on a battery.我们来谈谈电动车。好的，Richard，那么电动车到底是什么？简单来说，就是由电动机驱动的汽车——而电动机是依靠电池运作的。
OK, so presumably they're becoming more popular because they're more environmentally friendly than regular petrol or diesel cars. Exactly. I mean, the batteries are charged by electricity, which comes from a normal power station.好的，所以它们越来越受欢迎，大概是因为比普通的汽油车或柴油车更环保。确实如此。电动车的电池是通过发电站提供的电力来充电的。
But the cars themselves produce no emissions whatsoever. So there's no noxious fumes. Are they more expensive, though? Yes, they are more expensive.但电动车本身完全不产生排放物。所以没有任何有害废气。不过它们更贵吗？是的，它们确实更贵。
But that price is coming down because obviously a lot of governments are giving tax advantages. So they're getting a bit cheaper and they're much cheaper to run. For instance, with the Nissan Leaf, which is the most popular electrical car today, according to UK figures, it costs 1.75 pence a mile to run as opposed to a petrol car, which is 10 pence a mile.但价格正在下降，因为显然有许多政府提供税收优惠。这样电动车的价格逐渐降低，并且使用成本也便宜得多。例如，根据英国的数据，目前最受欢迎的电动车——日产聆风，其运行成本是每英里1.75便士，而汽油车则是每英里10便士。
So not even 2p a mile. Exactly. Much cheaper.所以每英里甚至不到两便士。没错，便宜很多。
However, of course, the batteries are very expensive and you have to replace them after a certain amount of time. OK, this is something I get a bit confused about – the recharging. I mean, you can't go very far in an electric car, can you? Yes, going back to the Leaf, they reckon you can go for about 100 miles, maybe 120 miles without recharging.不过当然，电池非常昂贵，并且使用一段时间后必须更换。好的，有件事我有点迷糊——充电。我是说，电动车行驶不了太远，对吗？是的，回到聆风这个例子，据说一次充电可以行驶大约100到120英里。
So going around town, it's no problem. You go to work, come back again and it recharges overnight. Now, how does it do that? You just plug it into the mains and then about eight hours later, it's fully charged, ready to go the following day.所以在城市里开车完全没问题。上班、回家都够用，晚上就能充满电。那么它是怎么做到的呢？你只需要把它插到普通电源插座，大约八小时后就能完全充满，第二天即可使用。
OK, so you have to be able to park the car in a place where you can recharge it. Yes, that's a difficulty for some people. Well, if you live in a block of flats, for example, there's nowhere to recharge your car.好的，所以你必须把车停在能充电的地方。是的，这对有些人来说是个难题。例如，如果你住在公寓楼里，可能没有地方给车充电。
Published on 1 week, 2 days ago