day and night

Noun

uncountable

Synonym of chalk and cheese (“two things that are very different”)

Japanese Meaning

全く違うもの / 天と地ほど違うもの / 性質や特徴が極めて異なるもの

Their approaches to problem-solving are day and night, so joint projects usually end in frustration.

彼らの問題解決へのアプローチは月とすっぽんのように全く異なるため、共同プロジェクトはたいてい行き詰まる。

Sense（1）

Synonym of chalk and cheese (“two things that are very different”)