An expression may pertain-to a man.Logical formLearned from164 sentences. An expression may pertain-to a language.Logical formLearned from163 sentences. Remorse may undergo expressions.Logical formLearned from163 sentences. Expressions can be strong.Logical formLearned from163 sentences. An expression can be vacant.Logical formLearned from163 sentences. Discontent may undergo an expression.Logical formLearned from163 sentences. Expressions can be personal.Logical formLearned from161 sentences. Sorrow may undergo expressions.Logical formLearned from161 sentences. An expression can be annoyed.Logical formLearned from160 sentences. Affection may undergo expressions.Logical formLearned from160 sentences. Emotions may undergo an expression.Logical formLearned from160 sentences. Sorrow may undergo an expression.Logical formLearned from157 sentences. An expression can be bewildered.Logical formLearned from157 sentences. An expression may darken.Logical formLearned from153 sentences. A person may hear an expression.Logical formLearned from153 sentences.