cleannesses
Irritatingly pleased with oneself; offensively self-complacent, self-satisfied. / Showing smugness; showing self-complacency, self-satisfaction.
plural of cleanness
(mathematics, geometry) A polyhedron with an infinite number of faces.
From that time on.
生物学者は実験を始める前に、2つの実験室環境の清潔さの度合いを比較した。
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