A culture can be opaque.Logical formLearned from1 sentences. Plots can be opaque.Logical formLearned from1 sentences. A bakelite can be opaque.Logical formLearned from1 sentences. A goop can be opaque.Logical formLearned from1 sentences. Explanations can be opaque.Logical formLearned from1 sentences. Controls can be opaque.Logical formLearned from1 sentences. Compounds can be opaque.Logical formLearned from1 sentences. (Window glass) can be opaque to a portion of ultraviolet rays.Logical formLearned from1 sentences. (Tempera paints) can be opaque.Logical formLearned from1 sentences. Bowls can be opaque.Logical formLearned from1 sentences. (Tin glazes) can be opaque.Logical formLearned from1 sentences. (Film negatives) can be opaque in areas.Logical formLearned from1 sentences. Varnishes can be opaque.Logical formLearned from1 sentences. Metals can be opaque to rays.Logical formLearned from1 sentences. (Silicate minerals) can be opaque.Logical formLearned from1 sentences.