Tryptophan
n. 色氨酸\\n[化] 色氨酸; β-吲哚基丙氨酸
??? 情景例句
Grandpa really loves his family, doesn't he?
爺爺確實很愛這個家， 是嗎？
Who will accompany you to the airport?
誰將陪你去機場？
and so they gradually acquire a value beyond their true worth.
因此這些東西慢慢獲得了一種超出它本身的價值。