几十年前，人们就开始使用太阳能计算器，制造太阳能电热板镶嵌的建筑。

People have had solar-powered calculators and buildings with solar panels for decades.

youdao

几十年前，人们就开始使用太阳能计算器，制造太阳能电热板镶嵌的建筑。

People have had solar-powered calculators and buildings with solar panels for decades.

youdao