YOU SAID:
A penguin is a circular cylinder
INTO JAPANESE
ペンギンは円柱です
BACK INTO ENGLISH
penguins are cylinders
INTO JAPANESE
ペンギンは円柱
BACK INTO ENGLISH
penguin is a cylinder
INTO JAPANESE
ペンギンは円柱
BACK INTO ENGLISH
penguin is a cylinder
You've done this before, haven't you.