YOU SAID:

Thirty quick hippos jumped into a lake and now they're gone.

INTO JAPANESE

30匹の速いカバが湖に飛び込みました、そして今、彼らは去りました。

BACK INTO ENGLISH

Thirty fast hippos jumped into the lake, and now they are gone.

INTO JAPANESE

30匹の速いカバが湖に飛び込みました、そして今、彼らは去りました。

BACK INTO ENGLISH

Thirty fast hippos jumped into the lake, and now they are gone.