名詞 phenylalanine:

1. 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

phen.yl.al.a.nine

n.（名詞）
An essential amino acid, C'H 5CH 2CH(NH 2)COOH, that occurs as a constituent of many proteins and is normally converted to tyrosine in the human body. It is necessary for growth in infants and for nitrogen equilibrium in adults.
苯丙氨酸：一種基本的氨基酸，C'H 5CH 2CH(NH 2)COOH，是許多蛋白質(zhì)的組成成分，通常在人體內(nèi)常轉(zhuǎn)變?yōu)槔野彼?。它是嬰兒成長(zhǎng)和成人的氮平衡所必需的