trypto-phan

英 [t'rɪptəʊf'æn] 美 [t'rɪptəʊf'æn]

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trypto-phan的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 tryptophan:

1. an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin