How to say “Thirty reais for a melon and it turned out watery — I might as well have drunk a glass of water.” in Japanese
In Japanese
メロン一個に三千円も払ったのに水っぽくて、これなら水を飲んだほうがましだったよ。
Meron ikko ni sanzen'en mo haratta noni mizuppokute, kore nara mizu o nonda hō ga mashi datta yo.