Luciferin
n. 熒光素\\n[化] 熒光素(蟲(chóng)的)
??? 情景例句
Me?
我？
No, I only wrote her one letter this year.
是的，今年我才給她寫(xiě)過(guò)一封信。
He asked very politely, Excuse me, have you got any books about the moon and the stars?
“請(qǐng)問(wèn)，你有關(guān)于月亮和星星的書(shū)嗎？”