英语词汇usnic acid怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	usnic acid
释义	us·nic acid AHD[ŭsʹnĭk] D.J.[ˈʌsnɪk]K.K.[ˈʌsnɪk]n.（名词） An antibacterial substance, C₁₈H ₁₆O ₇, obtained from lichens of the genus Usnea, especially U. barbata. 地衣酸：一种抗菌素，C₁₈H ₁₆O ₇，从松萝属地衣中获得，尤其是光滑松萝
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