英语词汇optional elements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	optional elements
释义	optional elements supplementationn. 增补；补充；追加 complementationn. 互补；补足语
随便看	nuclei air bubble Nuclei anteriores thalami Nuclei,Anterior Thalamic nuclei arciformes nuclei arcuati nuclei arcuati medullae oblongatae nuclei areae nuclei at rest Nuclei,Basal Nuclei basales nucleic nucleic acid nucleicacid Nucleic Acid Amplification Nucleic Acid Amplification Technics Nucleic Acid Amplification Techniques Nucleic Acid and Casein Hydrolysate Composite Injection nucleic acidase nucleicacidase nucleic acid base nucleic acid binding protein nucleic acid chemistry nucleic acid chromatography system nucleic acid condiment Nucleic Acid Conformation

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