translation.en: And two terawatt hours? In terms of coal, we'd need to burn 34 of these wheelbarrows every minute around the clock every day for an entire year to get two terawatt hours of electricity.
translation.zh: 两个太瓦小时，换成煤炭的话， 我们需要每分钟燃烧34辆这种独轮手推车的煤炭， 每小时60分钟，每天24小时，每年365天。 才能得到两个太瓦小时的能量。