YOU SAID:

the sun will destroy the earth in a few billion years

INTO JAPANESE

太陽は数十億年以内に地球を破壊するでしょう

BACK INTO ENGLISH

The sun will destroy the earth within billions of years

INTO JAPANESE

太陽は数十億年以内に地球を破壊するでしょう

BACK INTO ENGLISH

The sun will destroy the earth within billions of years