respiration/ˌrespəˈreɪʃn; ˌrɛspə`reʃən/ n1 [C, U] (fml 文) (single act of) breathing air 呼吸; 一次呼吸 [attrib作定语]respiration rate 呼吸率.2 [U] plant's absorptionof oxygen and release of carbon dioxide （植物的）呼吸.
牛津英汉双解词典