他说我们得知第五太阳纪始于公元前3113年。

He said that we know started in the fifth century BC the sun 3113 years.

youdao

与现在西历相比较的话，便可知「太阳纪」将于“某纪的某日”竣事。

Now contrast with the Western calendar, they will know "the Sun" will be "a century of a Day" ended.

youdao

到了20世纪70年代，人们又对太阳能产生了兴趣。

Then in the 1970s, there was an interest in solar energy again.

youdao