Tryptophan
n. 色氨酸\\n[化] 色氨酸; β-吲哚基丙氨酸
🗣️ 情景例句
We're happy you got the promotion.
很高兴你得到了提拔。
None so deaf as those that won't hear.
置若罔闻。
I suddenly felt very worried, but could not say anything.
我突然非常着急起来，但却什么也说不出来。