How to say “If you're at the harbour while they're unloading the catch, you can buy fish straight off the boat for half the market price.” in Japanese
In Japanese
漁師さんが水揚げしてるときに港に行けば、船から直接、市場の半額で魚が買えるよ。
Ryōshi-san ga mizuage shiteru toki ni minato ni ikeba, fune kara chokusetsu, ichiba no hangaku de sakana ga kaeru yo.