chalk and cheese

Noun

Britain New-Zealand idiomatic uncountable

(Britain, New Zealand, idiomatic) Said of things that very different, though possibly superficially alike.

Japanese Meaning

外見は似ていても実際にはまったく異なる、全く違った性質や特徴を持つ二つのものを指す（比喩的表現）。

On paper their products look similar, but when it comes to quality they are chalk and cheese.

書類上は製品は似て見えるが、品質に関しては両者は全くの別物だ。

Sense（1）

(Britain, New Zealand, idiomatic) Said of things that very different, though possibly superficially alike.