YOU SAID:

They watered this with the blood of 36 dragons.

INTO JAPANESE

彼らはこれに36匹のドラゴンの血を注ぎました。

BACK INTO ENGLISH

They poured the blood of 36 dragons into it.

INTO JAPANESE

そこに36匹の龍の血を注ぎました。

BACK INTO ENGLISH

The blood of 36 dragons was poured into it.

INTO JAPANESE

そこには36匹の龍の血が注がれていた。

BACK INTO ENGLISH

The blood of 36 dragons was poured into it.