messages.content: 请将中文翻译成英文
messages.role: system
messages.content: 按照满载估算，单这一条线路年送电就将达到600至850亿千瓦时，可满足上海全年一半以上用电。
messages.role: user
messages.content: Assuming full load, the power transmitted annually on this line alone will reach 60 to 85 billion kilowatt hours, which could satisfy more than half of Shanghai's annual electricity consumption.
messages.role: assistant