cù / quán / shì / yì / zhǒng / jù / yǒu / cì / jī / xìng / qì / wèi / de / yǒu / jī / huà / hé / wù醋醛是一种具有刺激性气味的有机化合物。Acetaldehyde is an organic compound with a pungent odor.