The first practical windmills were later built in Sistan , Afghanistan, from the 7th century.

的第一个实际风车后来建于斯坦，阿富汗，从公元7世纪。

youdao

The first practical windmills were later built in Sistan , Afghanistan, from the 7th century.

的第一个实际风车后来建于斯坦，阿富汗，从公元7世纪。

youdao