与"expectorant operation"相近的词条

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• expectorant agent
• expectorant cough medicines
• expectorant effect
• expectorant extract
• expectorant mixture
• expectorant operation
• expectorant tablet
• expectorants
• expectorate
• expectorate blood
• expectorate phlegm
• expectorated
• expectoratin of yellowish sputum
• expectoratin with watery phlegm
• expectoratio
• expectoration

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