How to say “This mail cart is already loaded; the next batch will have to go on another one.” in Japanese
In Japanese
この郵便物用台車にはもう荷物が積まれてるから、次の分は別の台車に載せよう。
Kono yūbinbutsuyō daisha ni wa mō nimotsu ga tsumareteru kara, tsugi no bun wa betsu no daisha ni noseyō.