phenylalanine(a protein amino acid)的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 phenylalanine:
an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body
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